51.79% is the change from 641 to 973
Calculation steps:
[( 973 - 641 ) ÷ 641] x 100 = 51.79%
Formula
Percentage change = [(973 - 641) / 641] x 100
Subtract the new number by the original number
973 - 641 = 332
332 ÷ 641 = 0.5179407176287052
0.5179407176287052 x 100 = 51.79%