-78.54% is the change from 806 to 173
Calculation steps:
[( 173 - 806 ) ÷ 806] x 100 = -78.54%
Formula
Percentage change = [(173 - 806) / 806] x 100
Subtract the new number by the original number
173 - 806 = -633
-633 ÷ 806 = -0.7853598014888338
-0.7853598014888338 x 100 = -78.54%