175% is the change from 12 to 33
Calculation steps:
[( 33 - 12 ) ÷ 12] x 100 = 175%
Formula
Percentage change = [(33 - 12) / 12] x 100
Subtract the new number by the original number
33 - 12 = 21
21 ÷ 12 = 1.75
1.75 x 100 = 175%
Example