-84.77% is the change from 532 to 81
Calculation steps:
[( 81 - 532 ) ÷ 532] x 100 = -84.77%
Formula
Percentage change = [(81 - 532) / 532] x 100
Subtract the new number by the original number
81 - 532 = -451
-451 ÷ 532 = -0.8477443609022557
-0.8477443609022557 x 100 = -84.77%