-94.46% is the change from 487 to 27
Calculation steps:
[( 27 - 487 ) ÷ 487] x 100 = -94.46%
Formula
Percentage change = [(27 - 487) / 487] x 100
Subtract the new number by the original number
27 - 487 = -460
-460 ÷ 487 = -0.944558521560575
-0.944558521560575 x 100 = -94.46%