-71.63% is the change from 490 to 139
Calculation steps:
[( 139 - 490 ) ÷ 490] x 100 = -71.63%
Formula
Percentage change = [(139 - 490) / 490] x 100
Subtract the new number by the original number
139 - 490 = -351
-351 ÷ 490 = -0.7163265306122449
-0.7163265306122449 x 100 = -71.63%