47.9% is the change from 620 to 917
Calculation steps:
[( 917 - 620 ) ÷ 620] x 100 = 47.9%
Formula
Percentage change = [(917 - 620) / 620] x 100
Subtract the new number by the original number
917 - 620 = 297
297 ÷ 620 = 0.4790322580645161
0.4790322580645161 x 100 = 47.9%