-29.01% is the change from 810 to 575
Calculation steps:
[( 575 - 810 ) ÷ 810] x 100 = -29.01%
Formula
Percentage change = [(575 - 810) / 810] x 100
Subtract the new number by the original number
575 - 810 = -235
-235 ÷ 810 = -0.29012345679012347
-0.29012345679012347 x 100 = -29.01%