-73.63% is the change from 311 to 82
Calculation steps:
[( 82 - 311 ) ÷ 311] x 100 = -73.63%
Formula
Percentage change = [(82 - 311) / 311] x 100
Subtract the new number by the original number
82 - 311 = -229
-229 ÷ 311 = -0.7363344051446945
-0.7363344051446945 x 100 = -73.63%