21.91% is the change from 721 to 879
Calculation steps:
[( 879 - 721 ) ÷ 721] x 100 = 21.91%
Formula
Percentage change = [(879 - 721) / 721] x 100
Subtract the new number by the original number
879 - 721 = 158
158 ÷ 721 = 0.21914008321775313
0.21914008321775313 x 100 = 21.91%