1190.48% is the change from 21 to 271
Calculation steps:
[( 271 - 21 ) ÷ 21] x 100 = 1190.48%
Formula
Percentage change = [(271 - 21) / 21] x 100
Subtract the new number by the original number
271 - 21 = 250
250 ÷ 21 = 11.904761904761905
11.904761904761905 x 100 = 1190.48%