378.57% is the change from 140 to 670
Calculation steps:
[( 670 - 140 ) ÷ 140] x 100 = 378.57%
Formula
Percentage change = [(670 - 140) / 140] x 100
Subtract the new number by the original number
670 - 140 = 530
530 ÷ 140 = 3.7857142857142856
3.7857142857142856 x 100 = 378.57%