PercentageCalculator .proWhat is 2.1 percent of seven Dollars
Percentage Calculator
Solution for 'What is 2.1% of seven?'
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 2.1 percent of 7. What are the steps?
Step 1: first determine the value of the whole amount. We assume that the whole amount is 7.
Step 2: determine the percentage, which is 2.1.
Step 3: Convert the percentage 2.1% to its decimal form by dividing 2.1 into 100 to get the decimal number 0.021:
2.1100 = 0.021
Notice that dividing into 100 is the same as moving the decimal point two places to the left.
2.1 → 0.21 → 0.02
Step 4: Finally, find the portion by multiplying the decimal form, found in the previous step, by the whole amount:
0.021 x 7 = 0.147 (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 = 7 × 2.1100 = 7 × 0.021 = 0.147 (answer)
Therefore, the answer is 0.147 is 2.1 percent of 7.