51.73% is the change from 607 to 921
Calculation steps:
[( 921 - 607 ) ÷ 607] x 100 = 51.73%
Formula
Percentage change = [(921 - 607) / 607] x 100
Subtract the new number by the original number
921 - 607 = 314
314 ÷ 607 = 0.5172981878088962
0.5172981878088962 x 100 = 51.73%