42.59% is the change from 634 to 904
Calculation steps:
[( 904 - 634 ) ÷ 634] x 100 = 42.59%
Formula
Percentage change = [(904 - 634) / 634] x 100
Subtract the new number by the original number
904 - 634 = 270
270 ÷ 634 = 0.42586750788643535
0.42586750788643535 x 100 = 42.59%