51.95% is the change from 641 to 974
Calculation steps:
[( 974 - 641 ) ÷ 641] x 100 = 51.95%
Formula
Percentage change = [(974 - 641) / 641] x 100
Subtract the new number by the original number
974 - 641 = 333
333 ÷ 641 = 0.5195007800312013
0.5195007800312013 x 100 = 51.95%