-35.3% is the change from 813 to 526
Calculation steps:
[( 526 - 813 ) ÷ 813] x 100 = -35.3%
Formula
Percentage change = [(526 - 813) / 813] x 100
Subtract the new number by the original number
526 - 813 = -287
-287 ÷ 813 = -0.35301353013530135
-0.35301353013530135 x 100 = -35.3%