150% is the change from 112 to 280
Calculation steps:
[( 280 - 112 ) ÷ 112] x 100 = 150%
Formula
Percentage change = [(280 - 112) / 112] x 100
Subtract the new number by the original number
280 - 112 = 168
168 ÷ 112 = 1.5
1.5 x 100 = 150%
Example