121.03% is the change from 390 to 862
Calculation steps:
[( 862 - 390 ) ÷ 390] x 100 = 121.03%
Formula
Percentage change = [(862 - 390) / 390] x 100
Subtract the new number by the original number
862 - 390 = 472
472 ÷ 390 = 1.2102564102564102
1.2102564102564102 x 100 = 121.03%