-79.63% is the change from 805 to 164
Calculation steps:
[( 164 - 805 ) ÷ 805] x 100 = -79.63%
Formula
Percentage change = [(164 - 805) / 805] x 100
Subtract the new number by the original number
164 - 805 = -641
-641 ÷ 805 = -0.7962732919254658
-0.7962732919254658 x 100 = -79.63%