This math video tutorial explains how to solve percentage, base, and rate 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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https://www.video-tutor.net/

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https://www.patreon.com/MathScienceTutor/collections