297.86% is the change from 140 to 557
Calculation steps:
[( 557 - 140 ) ÷ 140] x 100 = 297.86%
Formula
Percentage change = [(557 - 140) / 140] x 100
Subtract the new number by the original number
557 - 140 = 417
417 ÷ 140 = 2.9785714285714286
2.9785714285714286 x 100 = 297.86%