What is 9.9 percent of 100?
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Percentage Calculator
Visualizing Through Pie Charts
One way of visualizing 9.9 percent is through a pie chart. In this example, the orange slice represents the percentage of the whole pie.
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9.9 percent pie chart
Visualizing Percentage with Bar Charts
Another way of visualizing percentages is using a bar chart like the one below. The orange bar represents 9.9, percent and the full square represents the whole or 100%.
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9.9 percent bar chart
Solution for 'What is 9.9% of 100?'
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 9.9 percent of 100. What are the steps?
Step 1: First determine the value of the whole amount. We assume that the whole amount is 100.
Step 2: Determine the percentage, which is 9.9.
Step 3: Convert the percentage 9.9% to its decimal form by dividing 9.9 by 100 to get the decimal number 0.099:
9.9100 = 0.099
Notice that dividing by 100 is the same as moving the decimal point two places to the left.
9.9 → 0.99 → 0.10
Step 4: Finally, find the portion by multiplying the decimal form found in the previous step by the whole amount:
0.099 x 100 = 9.9 (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 = 100 × 9.9100 = 100 × 0.099 = 9.9 (answer)
Therefore, the answer is 9.9 is that 9.9 percent of 100.