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how to find original number from percent change. Current percent 1 Summary To calculate the original number based on current value and known percentage change you can use a simple formula that divides the. The percentage of 2 in 5 is 2 5 100.
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Step 1 Get the percentage of the original number. The original cost was 600. If the percentage is an increase then add it to 100 if it is a decrease then subtract it from 100.
New_value - original_value original_value 100.
Of course that results in 325 which is the wrong answer though it would be the right answer if 50 was the gross profit percentage rather than a mark-up percentage. The resulting decimal is then converted to a percent. The new quantity must be less than the original or the change will be an increase. The percent change formula is as follows.
