27.42% is the change from 620 to 790
Calculation steps:
[( 790 - 620 ) ÷ 620] x 100 = 27.42%
Formula
Percentage change = [(790 - 620) / 620] x 100
Subtract the new number by the original number
790 - 620 = 170
170 ÷ 620 = 0.27419354838709675
0.27419354838709675 x 100 = 27.42%