base value 8
example: A CD player is on sale for $ 180.
question: What was the original price of the CD player, if the discount was 1/4 of the original price?
{source}
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solution:
given: part (new price) = $ 180 rate = 75% (100% – 25% = 75%) because 1/4 = 0,25 = 25%
wanted: base value (original price)
formula:
base value = part * 100 : rate
base value = 180 * 100 : 75
base value = $ 240
answer:
The original price was $ 240.