LESSON 7
INTEREST AND FUTURE VALUE
Finance and Financial Markets| 1st Semester
                                                 ● Time (n)
           WHAT IS INTEREST                              -   Number of years or
Interest is the price you pay to borrow                      portion of a year that the
money or the cost you charge to lend                         principal is borrowed or
most often reflected as an annual                            invested.
percentage of the amount of a loan.
                                                      NATURE OF SIMPLE INTEREST
For example, a bank will pay you              Interest computed on the principal
interest when you deposit your money          only . Assume you borrow P5,000 for 2
in a high account. The bank pays you          years at a simple interest rate of 12%
to hold and use your money to invest          annually. Calculate the annual interest
in other traConversely, if you borrow         cost.
money to pay for a large expense, the
lender will interest on top of the            Simple Interest = Principal x Interest
amount you borrowed.                          Rate x Time
                                              = P5,000 x 0.12 x 2
                 INTEREST
                                              = P1,200
Nature of Interest
   ● Payment for the use of money.
                                                 NATURE OF COMPOUND INTEREST
   ● Difference between amount
       borrowed or invested (principal)       Illustration: Compound Interest
       and amount repaid or collected.        Assume you deposit P1,000 in Bank
                                              Two, where it will earn simple interest
Elements involved in financing                of 9% per year, and you deposit
transaction:                                  another P1,000 in Citizens Bank, where it
   ● Principal (p)                            will earn compound interest of 9% per
          -    Amount borrowed or             year compounded annually. Also
               invested.                      assume that in both cases you will not
                                              withdraw any cash until three years
   ● Interest Rate (i)                        from the date of deposit. Compute the
          -    An annual percentage.          interest to be received and the
                                              accumulated year-end balances for
                                              Citizens Bank.
LESSON 7
INTEREST AND FUTURE VALUE
Finance and Financial Markets| 1st Semester
                                              The future value of a P1,000 investment
Illustration Solution: Compound               earning 9% for three years is P1,295.03.
Interest
                                              Illustration: Using tables
    NATURE OF FUTURE VALUE OF A
         SINGLE AMOUNT
Future value (FV) is the value of a
current asset at a future date based
on an assumed rate of growth. The
                                              Illustration 2:
future value is important to investors
                                              Johan and Marlene invested P20,000 in
and financial planners, as they use it to
                                              a savings account paying 6% interest
estimate how much an investment
                                              at the time their son, Jomar, was born.
made today will be worth in the future.
                                              The money is to be used by Jomar for
                                              his college education. On his 18th
Value at a future date of a given
                                              birthday, Jomar withdraws the money
amount invested, assuming
                                              from his savings account. How much
compound interest.
                                              did Jomar withdraw from his account?
Illustration: Using the formula
LESSON 7
INTEREST AND FUTURE VALUE
Finance and Financial Markets| 1st Semester
         FUTURE VALUE OF ANNUITY              Illustration 2:
The future value of an annuity is the         Alden and Maine’s daughter, Ilana, has
value of a group of recurring payments        just started high school. They decide to
at a certain date in the future,              start a college fund for her and will
assuming a particular rate of return, or      invest P2,500 in a savings account at
discount rate. The higher the discount        the end of each year she is in high
rate, the greater the annuity's future        school (4 payments total). The
value.                                        account will earn 6% interest
                                              compounded annually. How much will
Illustration 1:                               be in the college fund at the time Ilana
Assume you invest P2,000 at the end of        graduates from high school?
each year for three years at 5% interest
compounded annually.
                                              Illustration 2 Using Tables:
Solution:
LESSON 7
INTEREST AND FUTURE VALUE
Finance and Financial Markets| 1st Semester
                                               you buy a stock today for P100 that
                                               awards a 2% dividend each year, you
                                               can calculate the future value.
                                               Alternatively, if you want to have
                                               P10,000 of future value on hand for a
                                               down payment for a car next year, you
                                               can solve for the present value.
 UNDERSTANDING THE FUTURE VALUE                Present value and future value simply
         OF AN ANNUITY                         indicate the value of an investment
Because of the time value of money,            looking forward or looking back. The
money received or paid out today is            two concepts are directly related, as
worth more than the same amount of             the future value of a series of cash
money will be in the future. That's            flows also has a present value. For
because the money can be invested              example, a present value of P1,000
and allowed to grow over time. By the          today may be equal to the future value
same logic, a lump sum of $5,000               of P1,200 today. Most often, investors
today is worth more than a series of           and analysts will know one value and
five $1,000 annuity payments spread            try to solve for the other. For instance, if
out over five years.                           you buy a stock today for P100 that
                                               awards a 2% dividend each year, you
 WHAT IS THE RELATIONSHIP BETWEEN              can calculate the future value.
 PRESENT VALUE AND FUTURE VALUE                Alternatively, if you want to have
                                               P10,000 of future value on hand for a
Present value and future value simply
                                               down payment for a car next year, you
indicate the value of an investment
                                               can solve for the present value.
looking forward or looking back. The
two concepts are directly related, as
the future value of a series of cash
flows also has a present value. For
example, a present value of P1,000
today may be equal to the future value
of P1,200 today. Most often, investors
and analysts will know one value and
try to solve for the other. For instance, if