-18.69% is the change from 487 to 396
Calculation steps:
[( 396 - 487 ) ÷ 487] x 100 = -18.69%
Formula
Percentage change = [(396 - 487) / 487] x 100
Subtract the new number by the original number
396 - 487 = -91
-91 ÷ 487 = -0.1868583162217659
-0.1868583162217659 x 100 = -18.69%