-8.85% is the change from 791 to 721
Calculation steps:
[( 721 - 791 ) ÷ 791] x 100 = -8.85%
Formula
Percentage change = [(721 - 791) / 791] x 100
Subtract the new number by the original number
721 - 791 = -70
-70 ÷ 791 = -0.08849557522123894
-0.08849557522123894 x 100 = -8.85%