Answer :
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.
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.
