257.86% is the change from 140 to 501
Calculation steps:
[( 501 - 140 ) ÷ 140] x 100 = 257.86%
Formula
Percentage change = [(501 - 140) / 140] x 100
Subtract the new number by the original number
501 - 140 = 361
361 ÷ 140 = 2.5785714285714287
2.5785714285714287 x 100 = 257.86%