-27.65% is the change from 810 to 586
Calculation steps:
[( 586 - 810 ) ÷ 810] x 100 = -27.65%
Formula
Percentage change = [(586 - 810) / 810] x 100
Subtract the new number by the original number
586 - 810 = -224
-224 ÷ 810 = -0.2765432098765432
-0.2765432098765432 x 100 = -27.65%