20% increase
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83.333%
To increase a number by 15 percent, multiply the number by 1.15. For example, 60 plus 15 percent is equal to 60 x 1.15 = 69.
2 nickels = 5+5 = 10 cents 2 quarters= 25+25= 50 cents therefore 50+10=60 so 2 quarters and 2 nickels is 60 cents
50 x 1.20 = 60
The decrease from 60 to 54 is: 10%