50.31% is the change from 644 to 968
Calculation steps:
[( 968 - 644 ) ÷ 644] x 100 = 50.31%
Formula
Percentage change = [(968 - 644) / 644] x 100
Subtract the new number by the original number
968 - 644 = 324
324 ÷ 644 = 0.5031055900621118
0.5031055900621118 x 100 = 50.31%