-21.93% is the change from 921 to 719
Calculation steps:
[( 719 - 921 ) ÷ 921] x 100 = -21.93%
Formula
Percentage change = [(719 - 921) / 921] x 100
Subtract the new number by the original number
719 - 921 = -202
-202 ÷ 921 = -0.21932681867535286
-0.21932681867535286 x 100 = -21.93%