Percent as a Proportion

**Percent as a Proportion**

Example

Thanks to a donor, your department's budget for this year's supplies is 160% of last year's budget. If last year's budget was $2,125.00, what is this year's budget?

Solution

Write a percent proportion.

Substitute 2125 for *b* and 160 for *p.*

Multiply each side by 2125.

*a* = 3400 Simplify.

**Finding a Base Number **

Find the number for which 24 is 0.8%.

Write a percent proportion.

Substitute 24 for *a *and 0.8 for *p*.

Find the cross product.

3000 = *b* Divide each side by 0.8 and simplify.

The number for which 24 is 0.8% is 3,000.