This math video tutorial provides a basic introduction into percent word problems. It explains how to calculate the total price after sales tax has been added and how to calculate the new price after a percent discount has been applied. It also explains how to calculate the original price of an item after sales tax has been included. This video contains many examples and practice problems.

Percentages Made Easy:
https://www.youtube.com/watch?v=WYWPuG-8U5Q

Percentage, Base, & Rate Problems:
https://www.youtube.com/watch?v=qstt3dR_iEw

Part, Whole, & Percent Proportion:
https://www.youtube.com/watch?v=Uo8HgcyfRFI

Percent Increase & Decrease Problems:
https://www.youtube.com/watch?v=T6-0MwmCpE8

Percent Error:
https://www.youtube.com/watch?v=JbEo46uV6d4

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Percentage Word Problems:
https://www.youtube.com/watch?v=kjpwBu6DmkM

Sales Price After Discount:
https://www.youtube.com/watch?v=o4H6adh7vmo

Sales Tax, Discount, & Original Price:
https://www.youtube.com/watch?v=TRlC8lqkhT4

How To Calculate The Original Price:
https://www.youtube.com/watch?v=6zRNXYRRv-k

Unique Percentage Problem:
https://www.youtube.com/watch?v=VLFvK3xhLxA

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Percent Uncertainty In Measurement:
https://www.youtube.com/watch?v=b881nOem4vg

Percent Composition By Mass:
https://www.youtube.com/watch?v=bGmbyztdCHE

Percent Abundance - Elements & Isotopes:
https://www.youtube.com/watch?v=w-WhwWNC8-Q

APR vs APY:
https://www.youtube.com/watch?v=qGR3kMH0TX0

The Dividend Yield:
https://www.youtube.com/watch?v=kQv8E1M6xq0

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Final Exams and Video Playlists:
https://www.video-tutor.net/