# Percent Equation to Find the Base b

## Solve "x is y percent of what number?"

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
• Video

## Solving Percent Problems Using The Percent Equation

by CK-12 //basic
Learn how to solve percent problems.
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• Video

## Example 2: Solve a Percent Problem Using a Percent Equation

by CK-12 //basic
Solves 36 is 15% of what number using a percent equation.
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