51.57% is the change from 638 to 967
Calculation steps:
[( 967 - 638 ) ÷ 638] x 100 = 51.57%
Formula
Percentage change = [(967 - 638) / 638] x 100
Subtract the new number by the original number
967 - 638 = 329
329 ÷ 638 = 0.5156739811912225
0.5156739811912225 x 100 = 51.57%