
B is what percentage of AФFormula for calculating what percentage of the number B from the number A.If you know two number A and B and need find, B is what percentage of A, then
For the derivation of this equation using the method of solving problems with percentage
Examples of solving problems: B is what percentage of AExample 1. 5 is what percentage of 40.
Solution.
Answer: 5 is 12.5% of 40. Example 2. In store book costs $ 400 and $ 380 on the market. Find what percentage of the market price in relation to the store?
Solution.
Answer: 95%. Example 3. The bank deposit put $ 10,000 in a year have profited of $ 1200, what the interest rate was in the bank.
Solution. The interest rate is equal to a percentage, which is the profit of the deposit amount
Answer: the interest rate was 12%.
Percent
Percent Definition. Main information
Decimal to Percent. Percent to Decimal
The method of solving problems with percentage
The most common types of problems with percent:
Find P percent of A
B is P percent of what?
B is what percent of A?
Find the number which is greater (less) than a given number by P percent.
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