-91.7% is the change from 482 to 40
Calculation steps:
[( 40 - 482 ) ÷ 482] x 100 = -91.7%
Formula
Percentage change = [(40 - 482) / 482] x 100
Subtract the new number by the original number
40 - 482 = -442
-442 ÷ 482 = -0.91701244813278
-0.91701244813278 x 100 = -91.7%