-13.55% is the change from 834 to 721
Calculation steps:
[( 721 - 834 ) ÷ 834] x 100 = -13.55%
Formula
Percentage change = [(721 - 834) / 834] x 100
Subtract the new number by the original number
721 - 834 = -113
-113 ÷ 834 = -0.1354916067146283
-0.1354916067146283 x 100 = -13.55%