227.07% is the change from 266 to 870
Calculation steps:
[( 870 - 266 ) ÷ 266] x 100 = 227.07%
Formula
Percentage change = [(870 - 266) / 266] x 100
Subtract the new number by the original number
870 - 266 = 604
604 ÷ 266 = 2.2706766917293235
2.2706766917293235 x 100 = 227.07%