-79.6% is the change from 446 to 91
Calculation steps:
[( 91 - 446 ) ÷ 446] x 100 = -79.6%
Formula
Percentage change = [(91 - 446) / 446] x 100
Subtract the new number by the original number
91 - 446 = -355
-355 ÷ 446 = -0.7959641255605381
-0.7959641255605381 x 100 = -79.6%