19.55% is the change from 711 to 850
Calculation steps:
[( 850 - 711 ) ÷ 711] x 100 = 19.55%
Formula
Percentage change = [(850 - 711) / 711] x 100
Subtract the new number by the original number
850 - 711 = 139
139 ÷ 711 = 0.19549929676511954
0.19549929676511954 x 100 = 19.55%