-2.77% is the change from 721 to 701
Calculation steps:
[( 701 - 721 ) ÷ 721] x 100 = -2.77%
Formula
Percentage change = [(701 - 721) / 721] x 100
Subtract the new number by the original number
701 - 721 = -20
-20 ÷ 721 = -0.027739251040221916
-0.027739251040221916 x 100 = -2.77%