-33.62% is the change from 812 to 539
Calculation steps:
[( 539 - 812 ) ÷ 812] x 100 = -33.62%
Formula
Percentage change = [(539 - 812) / 812] x 100
Subtract the new number by the original number
539 - 812 = -273
-273 ÷ 812 = -0.33620689655172414
-0.33620689655172414 x 100 = -33.62%