311.85% is the change from 135 to 556
Calculation steps:
[( 556 - 135 ) ÷ 135] x 100 = 311.85%
Formula
Percentage change = [(556 - 135) / 135] x 100
Subtract the new number by the original number
556 - 135 = 421
421 ÷ 135 = 3.1185185185185187
3.1185185185185187 x 100 = 311.85%