-79.38% is the change from 810 to 167
Calculation steps:
[( 167 - 810 ) ÷ 810] x 100 = -79.38%
Formula
Percentage change = [(167 - 810) / 810] x 100
Subtract the new number by the original number
167 - 810 = -643
-643 ÷ 810 = -0.7938271604938272
-0.7938271604938272 x 100 = -79.38%