Finding 20 per cent of a number is the same as multiplying the number by 0.2. In this instance, 0.2 x 12590 = 2518.
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12590 = (1-.20)x12590 = .8x(12590) / .8 = (.8x) / .815737.50 = x ■
12590 = 4/5 of original so original = 5 x 12590/4 = 15737.50
Designate the original price as p. Then, from the problem statement, 80 % of p = 12590; p = 12590/0.80 = 15738. (If "20 percent" is considered to have only two significant digits, this should be written as "1.6 X 104 instead.)
$62,950.00
The original price was 15,737.50