What is 1.5 percent of 30?
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Percentage Calculator
Visualizing Through Pie Charts
One way of visualizing 1.5 percent is through a pie chart. In this example, the orange slice represents the percentage of the whole pie.
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1.5 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 1.5, percent and the full square represents the whole or 100%.
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1.5 percent bar chart
Solution for 'What is 1.5% of 30?'
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 1.5 percent of 30. What are the steps?
Step 1: First determine the value of the whole amount. We assume that the whole amount is 30.
Step 2: Determine the percentage, which is 1.5.
Step 3: Convert the percentage 1.5% to its decimal form by dividing 1.5 by 100 to get the decimal number 0.015:
1.5100 = 0.015
Notice that dividing by 100 is the same as moving the decimal point two places to the left.
1.5 → 0.15 → 0.02
Step 4: Finally, find the portion by multiplying the decimal form found in the previous step by the whole amount:
0.015 x 30 = 0.45 (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 = 30 × 1.5100 = 30 × 0.015 = 0.45 (answer)
Therefore, the answer is 0.45 is that 1.5 percent of 30.