-81.74% is the change from 449 to 82
Calculation steps:
[( 82 - 449 ) ÷ 449] x 100 = -81.74%
Formula
Percentage change = [(82 - 449) / 449] x 100
Subtract the new number by the original number
82 - 449 = -367
-367 ÷ 449 = -0.8173719376391982
-0.8173719376391982 x 100 = -81.74%