-76.87% is the change from 921 to 213
Calculation steps:
[( 213 - 921 ) ÷ 921] x 100 = -76.87%
Formula
Percentage change = [(213 - 921) / 921] x 100
Subtract the new number by the original number
213 - 921 = -708
-708 ÷ 921 = -0.7687296416938111
-0.7687296416938111 x 100 = -76.87%