3122.22% is the change from 27 to 870
Calculation steps:
[( 870 - 27 ) ÷ 27] x 100 = 3122.22%
Formula
Percentage change = [(870 - 27) / 27] x 100
Subtract the new number by the original number
870 - 27 = 843
843 ÷ 27 = 31.22222222222222
31.22222222222222 x 100 = 3122.22%