52.66% is the change from 638 to 974
Calculation steps:
[( 974 - 638 ) ÷ 638] x 100 = 52.66%
Formula
Percentage change = [(974 - 638) / 638] x 100
Subtract the new number by the original number
974 - 638 = 336
336 ÷ 638 = 0.5266457680250783
0.5266457680250783 x 100 = 52.66%