-91.4% is the change from 465 to 40
Calculation steps:
[( 40 - 465 ) ÷ 465] x 100 = -91.4%
Formula
Percentage change = [(40 - 465) / 465] x 100
Subtract the new number by the original number
40 - 465 = -425
-425 ÷ 465 = -0.9139784946236559
-0.9139784946236559 x 100 = -91.4%