-22.91% is the change from 921 to 710
Calculation steps:
[( 710 - 921 ) ÷ 921] x 100 = -22.91%
Formula
Percentage change = [(710 - 921) / 921] x 100
Subtract the new number by the original number
710 - 921 = -211
-211 ÷ 921 = -0.2290988056460369
-0.2290988056460369 x 100 = -22.91%