45X.2=9
45+9=54
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45 dollars plus a 7 percent increase gives a new value of $48.15
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.
10% of 45 dollars = 4.50 dollars
There is a 12.5% increase from 40 to 45.