-70.87% is the change from 721 to 210
Calculation steps:
[( 210 - 721 ) ÷ 721] x 100 = -70.87%
Formula
Percentage change = [(210 - 721) / 721] x 100
Subtract the new number by the original number
210 - 721 = -511
-511 ÷ 721 = -0.7087378640776699
-0.7087378640776699 x 100 = -70.87%