Percentage Increase Question:

During a sale in a bookstore all travel guides are reduced from $30 by 20%. What percentage increase is required to take the price back up to $30?

Please hlep, I don't understand and I have a math test tomorrow. Could you please include working so I can see how to do it :) THANK YOU!!!
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1 Answer

If yu kut sumthun 20%, it become 0.8

Tu get bak tu start take 1/0.8=1.25=gotta go up 25%

Finans peepl hav good zampel...If sumthun drop 50%, wot duit take

tu get bak even?...anser=100%.
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