-26.2% is the change from 977 to 721
Calculation steps:
[( 721 - 977 ) ÷ 977] x 100 = -26.2%
Formula
Percentage change = [(721 - 977) / 977] x 100
Subtract the new number by the original number
721 - 977 = -256
-256 ÷ 977 = -0.26202661207778916
-0.26202661207778916 x 100 = -26.2%