(See the attached images for the answers and explanations)
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▪︎RATE is the ratio of the percentage to the base. It is written in percent.
Rate can be calculated by using the formula, R = P/B × 100
▪︎BASE is the amount representing 100%. It is the whole from which a percent is taken from.
Base can be calculated by using the formula, B = P/R
▪︎PERCENTAGE is the actual amount that represents part of a whole. It can be found given the percent (rate) and the whole amount (base).
Percentage can be calculated by using the formula, P = R x B.
Example:
20 = Percentage is 29%= Rate of 80 = Base
or
29% = Rate of 80 = Base is 20 = Percentage
To solve a problem involving Percentage, Rate & Base, just always remember the TEEHAN'S TRIANGLE and each formula.
