150% is the change from 156 to 390
Calculation steps:
[( 390 - 156 ) ÷ 156] x 100 = 150%
Formula
Percentage change = [(390 - 156) / 156] x 100
Subtract the new number by the original number
390 - 156 = 234
234 ÷ 156 = 1.5
1.5 x 100 = 150%
Example