49.59% is the change from 617 to 923
Calculation steps:
[( 923 - 617 ) ÷ 617] x 100 = 49.59%
Formula
Percentage change = [(923 - 617) / 617] x 100
Subtract the new number by the original number
923 - 617 = 306
306 ÷ 617 = 0.4959481361426256
0.4959481361426256 x 100 = 49.59%