-71.43% is the change from 490 to 140
Calculation steps:
[( 140 - 490 ) ÷ 490] x 100 = -71.43%
Formula
Percentage change = [(140 - 490) / 490] x 100
Subtract the new number by the original number
140 - 490 = -350
-350 ÷ 490 = -0.7142857142857143
-0.7142857142857143 x 100 = -71.43%