-74.17% is the change from 813 to 210
Calculation steps:
[( 210 - 813 ) ÷ 813] x 100 = -74.17%
Formula
Percentage change = [(210 - 813) / 813] x 100
Subtract the new number by the original number
210 - 813 = -603
-603 ÷ 813 = -0.7416974169741697
-0.7416974169741697 x 100 = -74.17%