-40% is the change from 490 to 294
Calculation steps:
[( 294 - 490 ) ÷ 490] x 100 = -40%
Formula
Percentage change = [(294 - 490) / 490] x 100
Subtract the new number by the original number
294 - 490 = -196
-196 ÷ 490 = -0.4
-0.4 x 100 = -40%
Example