318.8% is the change from 133 to 557
Calculation steps:
[( 557 - 133 ) ÷ 133] x 100 = 318.8%
Formula
Percentage change = [(557 - 133) / 133] x 100
Subtract the new number by the original number
557 - 133 = 424
424 ÷ 133 = 3.18796992481203
3.18796992481203 x 100 = 318.8%