-47.87% is the change from 940 to 490
Calculation steps:
[( 490 - 940 ) ÷ 940] x 100 = -47.87%
Formula
Percentage change = [(490 - 940) / 940] x 100
Subtract the new number by the original number
490 - 940 = -450
-450 ÷ 940 = -0.4787234042553192
-0.4787234042553192 x 100 = -47.87%