35.16% is the change from 620 to 838
Calculation steps:
[( 838 - 620 ) ÷ 620] x 100 = 35.16%
Formula
Percentage change = [(838 - 620) / 620] x 100
Subtract the new number by the original number
838 - 620 = 218
218 ÷ 620 = 0.35161290322580646
0.35161290322580646 x 100 = 35.16%