48.87% is the change from 620 to 923
Calculation steps:
[( 923 - 620 ) ÷ 620] x 100 = 48.87%
Formula
Percentage change = [(923 - 620) / 620] x 100
Subtract the new number by the original number
923 - 620 = 303
303 ÷ 620 = 0.48870967741935484
0.48870967741935484 x 100 = 48.87%