-35.56% is the change from 810 to 522
Calculation steps:
[( 522 - 810 ) ÷ 810] x 100 = -35.56%
Formula
Percentage change = [(522 - 810) / 810] x 100
Subtract the new number by the original number
522 - 810 = -288
-288 ÷ 810 = -0.35555555555555557
-0.35555555555555557 x 100 = -35.56%