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What's the percent of change for 30 to 90

Sagot :

AL2006idn
First of all, remember that 100% is one whole thing.

Then.look at the problem, and see that 90 is three times 30.

-- 90 is 300% of an entire 30 .

-- To go from 30 to 90, you have to increase the 30 by 200% of itself.
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