100.31% is the change from 322 to 645
Calculation steps:
[( 645 - 322 ) ÷ 322] x 100 = 100.31%
Formula
Percentage change = [(645 - 322) / 322] x 100
Subtract the new number by the original number
645 - 322 = 323
323 ÷ 322 = 1.0031055900621118
1.0031055900621118 x 100 = 100.31%