How to Calculate the Change
Subtract the old value (90) from the new value (40), divide by the absolute value of the old value, and multiply by 100.
((40 - 90) ÷ 90) × 100 = 55.55555556%
This represents a 55.55555556% decrease
Subtract the old value (90) from the new value (40), divide by the absolute value of the old value, and multiply by 100.
((40 - 90) ÷ 90) × 100 = 55.55555556%
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