How to Calculate the Change
Subtract the old value (30) from the new value (20), divide by the absolute value of the old value, and multiply by 100.
((20 - 30) ÷ 30) × 100 = 33.33333333%
This represents a 33.33333333% decrease
Subtract the old value (30) from the new value (20), divide by the absolute value of the old value, and multiply by 100.
((20 - 30) ÷ 30) × 100 = 33.33333333%
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