40.73% is the change from 604 to 850
Calculation steps:
[( 850 - 604 ) ÷ 604] x 100 = 40.73%
Formula
Percentage change = [(850 - 604) / 604] x 100
Subtract the new number by the original number
850 - 604 = 246
246 ÷ 604 = 0.40728476821192056
0.40728476821192056 x 100 = 40.73%