PercentageCalculator .proWhat is 22.5 percent of 90?
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Solution for 'What is 22.5% of 90?'
In the following example, consider that:
- The percentage figure is represented by X%
- The whole amount is represented by W
- The portion amount or part is represented by P
Solution Steps
The following question is of the type "How much X percent of W", where W is the whole amount and X is the percentage figure or rate".
Let's say that you need to find 22.5 percent of 90. What are the steps?
Step 1: First determine the value of the whole amount. We assume that the whole amount is 90.
Step 2: Determine the percentage, which is 22.5.
Step 3: Convert the percentage 22.5% to its decimal form by dividing 22.5 by 100 to get the decimal number 0.225:
22.5100 = 0.225
Notice that dividing by 100 is the same as moving the decimal point two places to the left.
22.5 → 2.25 → 0.23
Step 4: Finally, find the portion by multiplying the decimal form found in the previous step by the whole amount:
0.225 x 90 = 20.25 (answer).
The steps above are expressed by the formula:
P = W × X%100
This formula says that:
"To find the portion or the part from the whole amount, multiply the whole by the percentage, then divide the result by 100".
The symbol % means the percentage expressed in a fraction or multiple of one hundred.
Replacing these values in the formula, we get:
P = 90 × 22.5100 = 90 × 0.225 = 20.25 (answer)
Therefore, the answer is 20.25 is that 22.5 percent of 90.