57.9% is the change from 620 to 979
Calculation steps:
[( 979 - 620 ) ÷ 620] x 100 = 57.9%
Formula
Percentage change = [(979 - 620) / 620] x 100
Subtract the new number by the original number
979 - 620 = 359
359 ÷ 620 = 0.5790322580645161
0.5790322580645161 x 100 = 57.9%