-4.72% is the change from 721 to 687
Calculation steps:
[( 687 - 721 ) ÷ 721] x 100 = -4.72%
Formula
Percentage change = [(687 - 721) / 721] x 100
Subtract the new number by the original number
687 - 721 = -34
-34 ÷ 721 = -0.047156726768377254
-0.047156726768377254 x 100 = -4.72%