-73.67% is the change from 490 to 129
Calculation steps:
[( 129 - 490 ) ÷ 490] x 100 = -73.67%
Formula
Percentage change = [(129 - 490) / 490] x 100
Subtract the new number by the original number
129 - 490 = -361
-361 ÷ 490 = -0.736734693877551
-0.736734693877551 x 100 = -73.67%