50.54% is the change from 647 to 974
Calculation steps:
[( 974 - 647 ) ÷ 647] x 100 = 50.54%
Formula
Percentage change = [(974 - 647) / 647] x 100
Subtract the new number by the original number
974 - 647 = 327
327 ÷ 647 = 0.5054095826893354
0.5054095826893354 x 100 = 50.54%