-81.82% is the change from 363 to 66
Calculation steps:
[( 66 - 363 ) ÷ 363] x 100 = -81.82%
Formula
Percentage change = [(66 - 363) / 363] x 100
Subtract the new number by the original number
66 - 363 = -297
-297 ÷ 363 = -0.8181818181818182
-0.8181818181818182 x 100 = -81.82%