-85.84% is the change from 466 to 66
Calculation steps:
[( 66 - 466 ) ÷ 466] x 100 = -85.84%
Formula
Percentage change = [(66 - 466) / 466] x 100
Subtract the new number by the original number
66 - 466 = -400
-400 ÷ 466 = -0.8583690987124464
-0.8583690987124464 x 100 = -85.84%