360% is the change from 140 to 644
Calculation steps:
[( 644 - 140 ) ÷ 140] x 100 = 360%
Formula
Percentage change = [(644 - 140) / 140] x 100
Subtract the new number by the original number
644 - 140 = 504
504 ÷ 140 = 3.6
3.6 x 100 = 360%
Example