1741.67% is the change from 12 to 221
Calculation steps:
[( 221 - 12 ) ÷ 12] x 100 = 1741.67%
Formula
Percentage change = [(221 - 12) / 12] x 100
Subtract the new number by the original number
221 - 12 = 209
209 ÷ 12 = 17.416666666666668
17.416666666666668 x 100 = 1741.67%