2158.33% is the change from 12 to 271
Calculation steps:
[( 271 - 12 ) ÷ 12] x 100 = 2158.33%
Formula
Percentage change = [(271 - 12) / 12] x 100
Subtract the new number by the original number
271 - 12 = 259
259 ÷ 12 = 21.583333333333332
21.583333333333332 x 100 = 2158.33%