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To solve percentage problems, it is essential to convert percentages to decimals. Percentages are parts per hundred, and the process starts by removing the percent symbol (%) and then dividing by 100. This step simplifies percentages, making them easier to use in equations. For example, to convert 2.5% to a decimal, we divide 2.5 by 100: 2.5% becomes 0.025.
Understanding this transformation is crucial because decimals are simpler to use in calculations compared to percentages. Once you’ve converted a percentage to a decimal, you're ready to perform further mathematical operations like multiplication.

Multiplication in algebra involves combining numbers or variables to get a product. When you have converted a percentage to a decimal, the next step is to use this decimal in a multiplication problem. Consider the exercise where we need to find 2.5% of 30. After converting 2.5% to 0.025, multiply it by 30:

• 0.025 (decimal form of 2.5%)
• 30 (the given number)

The multiplication process is straightforward:0.025 × 30 = 0.75.
Always remember, multiplying a number less than 1, like our decimal here, by another number reduces its size accordingly. Multiplication simplifies the problem into a clear numerical answer by scaling the given number (30) by the decimal (0.025).

Interpreting mathematical results correctly is vital for understanding the outcome of your calculations. After performing the multiplication, we obtained the result: 0.75. Interpreting this number in the context of the original problem is essential.
Since we were asked to find 2.5% of 30, and our calculations show that 0.75 is the answer, we conclude that 2.5% of 30 equals 0.75.
This means that if you take 2.5% of 30 units, you end up with 0.75 units. Properly interpreting results ensures you understand what the numbers represent and can apply this method to similar problems in future exercises.
In summary, interpreting mathematical results not only involves finding the answer but also understanding its meaning and relevance within the problem's context.