-19.19% is the change from 891 to 720
Calculation steps:
[( 720 - 891 ) ÷ 891] x 100 = -19.19%
Formula
Percentage change = [(720 - 891) / 891] x 100
Subtract the new number by the original number
720 - 891 = -171
-171 ÷ 891 = -0.1919191919191919
-0.1919191919191919 x 100 = -19.19%