-67.55% is the change from 490 to 159
Calculation steps:
[( 159 - 490 ) ÷ 490] x 100 = -67.55%
Formula
Percentage change = [(159 - 490) / 490] x 100
Subtract the new number by the original number
159 - 490 = -331
-331 ÷ 490 = -0.6755102040816326
-0.6755102040816326 x 100 = -67.55%