51.58% is the change from 634 to 961
Calculation steps:
[( 961 - 634 ) ÷ 634] x 100 = 51.58%
Formula
Percentage change = [(961 - 634) / 634] x 100
Subtract the new number by the original number
961 - 634 = 327
327 ÷ 634 = 0.5157728706624606
0.5157728706624606 x 100 = 51.58%