-91.17% is the change from 453 to 40
Calculation steps:
[( 40 - 453 ) ÷ 453] x 100 = -91.17%
Formula
Percentage change = [(40 - 453) / 453] x 100
Subtract the new number by the original number
40 - 453 = -413
-413 ÷ 453 = -0.9116997792494481
-0.9116997792494481 x 100 = -91.17%