1450% is the change from 12 to 186
Calculation steps:
[( 186 - 12 ) ÷ 12] x 100 = 1450%
Formula
Percentage change = [(186 - 12) / 12] x 100
Subtract the new number by the original number
186 - 12 = 174
174 ÷ 12 = 14.5
14.5 x 100 = 1450%
Example