1050% is the change from 12 to 138
Calculation steps:
[( 138 - 12 ) ÷ 12] x 100 = 1050%
Formula
Percentage change = [(138 - 12) / 12] x 100
Subtract the new number by the original number
138 - 12 = 126
126 ÷ 12 = 10.5
10.5 x 100 = 1050%
Example