21.08% is the change from 702 to 850
Calculation steps:
[( 850 - 702 ) ÷ 702] x 100 = 21.08%
Formula
Percentage change = [(850 - 702) / 702] x 100
Subtract the new number by the original number
850 - 702 = 148
148 ÷ 702 = 0.21082621082621084
0.21082621082621084 x 100 = 21.08%