-77.25% is the change from 356 to 81
Calculation steps:
[( 81 - 356 ) ÷ 356] x 100 = -77.25%
Formula
Percentage change = [(81 - 356) / 356] x 100
Subtract the new number by the original number
81 - 356 = -275
-275 ÷ 356 = -0.7724719101123596
-0.7724719101123596 x 100 = -77.25%