43.57% is the change from 638 to 916
Calculation steps:
[( 916 - 638 ) ÷ 638] x 100 = 43.57%
Formula
Percentage change = [(916 - 638) / 638] x 100
Subtract the new number by the original number
916 - 638 = 278
278 ÷ 638 = 0.43573667711598746
0.43573667711598746 x 100 = 43.57%