84.49% is the change from 490 to 904
Calculation steps:
[( 904 - 490 ) ÷ 490] x 100 = 84.49%
Formula
Percentage change = [(904 - 490) / 490] x 100
Subtract the new number by the original number
904 - 490 = 414
414 ÷ 490 = 0.8448979591836735
0.8448979591836735 x 100 = 84.49%