53.15% is the change from 634 to 971
Calculation steps:
[( 971 - 634 ) ÷ 634] x 100 = 53.15%
Formula
Percentage change = [(971 - 634) / 634] x 100
Subtract the new number by the original number
971 - 634 = 337
337 ÷ 634 = 0.5315457413249212
0.5315457413249212 x 100 = 53.15%