141.03% is the change from 390 to 940
Calculation steps:
[( 940 - 390 ) ÷ 390] x 100 = 141.03%
Formula
Percentage change = [(940 - 390) / 390] x 100
Subtract the new number by the original number
940 - 390 = 550
550 ÷ 390 = 1.4102564102564104
1.4102564102564104 x 100 = 141.03%