Percent Increase and Decrease Word Problems

This math video tutorial explains how to calculate the percent of change using the percent increase and decrease formula.

Percentage, Base, & Rate Problems:

Part, Whole, & Percent Proportion:

Percent Increase & Decrease Problems:

Percent Error:

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Percentage Word Problems:

Sales Price After Discount:

Sales Tax, Discount, & Original Price:

How To Calculate The Original Price:

Unique Percentage Problem:

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Percent Uncertainty In Measurement:

Percent Composition By Mass:

Percent Abundance - Elements & Isotopes:

APR vs APY:

The Dividend Yield:

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Final Exams and Video Playlists:

Full-Length Videos and Worksheets: