284.29% is the change from 140 to 538
Calculation steps:
[( 538 - 140 ) ÷ 140] x 100 = 284.29%
Formula
Percentage change = [(538 - 140) / 140] x 100
Subtract the new number by the original number
538 - 140 = 398
398 ÷ 140 = 2.842857142857143
2.842857142857143 x 100 = 284.29%