502.86% is the change from 140 to 844
Calculation steps:
[( 844 - 140 ) ÷ 140] x 100 = 502.86%
Formula
Percentage change = [(844 - 140) / 140] x 100
Subtract the new number by the original number
844 - 140 = 704
704 ÷ 140 = 5.0285714285714285
5.0285714285714285 x 100 = 502.86%