-19.59% is the change from 490 to 394
Calculation steps:
[( 394 - 490 ) ÷ 490] x 100 = -19.59%
Formula
Percentage change = [(394 - 490) / 490] x 100
Subtract the new number by the original number
394 - 490 = -96
-96 ÷ 490 = -0.19591836734693877
-0.19591836734693877 x 100 = -19.59%