-73.11% is the change from 305 to 82
Calculation steps:
[( 82 - 305 ) ÷ 305] x 100 = -73.11%
Formula
Percentage change = [(82 - 305) / 305] x 100
Subtract the new number by the original number
82 - 305 = -223
-223 ÷ 305 = -0.7311475409836066
-0.7311475409836066 x 100 = -73.11%