Let x = the variable.
Set up the equation.
65 = 52% * x
Divide both sides by 52%.
65/52% = x
Change % to decimal.
65/.52 = x
Answer: 125.
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80 * 0.65 = 52
0.65 x 800 = 520
52 __ 65
Well, isn't that a happy little math problem we have here! To find the original number, we can simply divide 65 by 1.25 (which represents the 25% increase as a decimal). So, 65 divided by 1.25 equals 52. So, the original number was 52.
65 percent = 65% or 0.65