12.9% is the change from 620 to 700
Calculation steps:
[( 700 - 620 ) ÷ 620] x 100 = 12.9%
Formula
Percentage change = [(700 - 620) / 620] x 100
Subtract the new number by the original number
700 - 620 = 80
80 ÷ 620 = 0.12903225806451613
0.12903225806451613 x 100 = 12.9%