-63.06% is the change from 490 to 181
Calculation steps:
[( 181 - 490 ) ÷ 490] x 100 = -63.06%
Formula
Percentage change = [(181 - 490) / 490] x 100
Subtract the new number by the original number
181 - 490 = -309
-309 ÷ 490 = -0.6306122448979592
-0.6306122448979592 x 100 = -63.06%