53.88% is the change from 631 to 971
Calculation steps:
[( 971 - 631 ) ÷ 631] x 100 = 53.88%
Formula
Percentage change = [(971 - 631) / 631] x 100
Subtract the new number by the original number
971 - 631 = 340
340 ÷ 631 = 0.5388272583201268
0.5388272583201268 x 100 = 53.88%