31.81% is the change from 481 to 634
Calculation steps:
[( 634 - 481 ) ÷ 481] x 100 = 31.81%
Formula
Percentage change = [(634 - 481) / 481] x 100
Subtract the new number by the original number
634 - 481 = 153
153 ÷ 481 = 0.3180873180873181
0.3180873180873181 x 100 = 31.81%