-20.99% is the change from 910 to 719
Calculation steps:
[( 719 - 910 ) ÷ 910] x 100 = -20.99%
Formula
Percentage change = [(719 - 910) / 910] x 100
Subtract the new number by the original number
719 - 910 = -191
-191 ÷ 910 = -0.2098901098901099
-0.2098901098901099 x 100 = -20.99%