-81.8% is the change from 445 to 81
Calculation steps:
[( 81 - 445 ) ÷ 445] x 100 = -81.8%
Formula
Percentage change = [(81 - 445) / 445] x 100
Subtract the new number by the original number
81 - 445 = -364
-364 ÷ 445 = -0.8179775280898877
-0.8179775280898877 x 100 = -81.8%