242.52% is the change from 254 to 870
Calculation steps:
[( 870 - 254 ) ÷ 254] x 100 = 242.52%
Formula
Percentage change = [(870 - 254) / 254] x 100
Subtract the new number by the original number
870 - 254 = 616
616 ÷ 254 = 2.425196850393701
2.425196850393701 x 100 = 242.52%