388.57% is the change from 140 to 684
Calculation steps:
[( 684 - 140 ) ÷ 140] x 100 = 388.57%
Formula
Percentage change = [(684 - 140) / 140] x 100
Subtract the new number by the original number
684 - 140 = 544
544 ÷ 140 = 3.8857142857142857
3.8857142857142857 x 100 = 388.57%