222.22% is the change from 270 to 870
Calculation steps:
[( 870 - 270 ) ÷ 270] x 100 = 222.22%
Formula
Percentage change = [(870 - 270) / 270] x 100
Subtract the new number by the original number
870 - 270 = 600
600 ÷ 270 = 2.2222222222222223
2.2222222222222223 x 100 = 222.22%