-85.43% is the change from 453 to 66
Calculation steps:
[( 66 - 453 ) ÷ 453] x 100 = -85.43%
Formula
Percentage change = [(66 - 453) / 453] x 100
Subtract the new number by the original number
66 - 453 = -387
-387 ÷ 453 = -0.8543046357615894
-0.8543046357615894 x 100 = -85.43%