-85.37% is the change from 451 to 66
Calculation steps:
[( 66 - 451 ) ÷ 451] x 100 = -85.37%
Formula
Percentage change = [(66 - 451) / 451] x 100
Subtract the new number by the original number
66 - 451 = -385
-385 ÷ 451 = -0.8536585365853658
-0.8536585365853658 x 100 = -85.37%