-85.62% is the change from 459 to 66
Calculation steps:
[( 66 - 459 ) ÷ 459] x 100 = -85.62%
Formula
Percentage change = [(66 - 459) / 459] x 100
Subtract the new number by the original number
66 - 459 = -393
-393 ÷ 459 = -0.8562091503267973
-0.8562091503267973 x 100 = -85.62%