2741.67% is the change from 12 to 341
Calculation steps:
[( 341 - 12 ) ÷ 12] x 100 = 2741.67%
Formula
Percentage change = [(341 - 12) / 12] x 100
Subtract the new number by the original number
341 - 12 = 329
329 ÷ 12 = 27.416666666666668
27.416666666666668 x 100 = 2741.67%