143.59% is the change from 390 to 950
Calculation steps:
[( 950 - 390 ) ÷ 390] x 100 = 143.59%
Formula
Percentage change = [(950 - 390) / 390] x 100
Subtract the new number by the original number
950 - 390 = 560
560 ÷ 390 = 1.435897435897436
1.435897435897436 x 100 = 143.59%