17.14% is the change from 700 to 820
Calculation steps:
[( 820 - 700 ) ÷ 700] x 100 = 17.14%
Formula
Percentage change = [(820 - 700) / 700] x 100
Subtract the new number by the original number
820 - 700 = 120
120 ÷ 700 = 0.17142857142857143
0.17142857142857143 x 100 = 17.14%