292.86% is the change from 140 to 550
Calculation steps:
[( 550 - 140 ) ÷ 140] x 100 = 292.86%
Formula
Percentage change = [(550 - 140) / 140] x 100
Subtract the new number by the original number
550 - 140 = 410
410 ÷ 140 = 2.9285714285714284
2.9285714285714284 x 100 = 292.86%