-50% is the change from 954 to 477
Calculation steps:
[( 477 - 954 ) ÷ 954] x 100 = -50%
Formula
Percentage change = [(477 - 954) / 954] x 100
Subtract the new number by the original number
477 - 954 = -477
-477 ÷ 954 = -0.5
-0.5 x 100 = -50%
Example