All percentage problems can be solved like this:
"of" means "times"
"is" means "equals"
n * 54 = 45
Take 45 and divide it by 54 and change the result to a percent (multiply by 100.)
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64.8 is 54% of 120.
To increase 45 by 20 percent, you first calculate 20 percent of 45 by multiplying 45 by 0.20, which equals 9. Then, you add this result to the original number: 45 + 9 = 54. Therefore, increasing 45 by 20 percent results in 54.
20% increase.
45X.2=945+9=54
45 :)