52.48% is the change from 604 to 921
Calculation steps:
[( 921 - 604 ) ÷ 604] x 100 = 52.48%
Formula
Percentage change = [(921 - 604) / 604] x 100
Subtract the new number by the original number
921 - 604 = 317
317 ÷ 604 = 0.5248344370860927
0.5248344370860927 x 100 = 52.48%