-78.51% is the change from 791 to 170
Calculation steps:
[( 170 - 791 ) ÷ 791] x 100 = -78.51%
Formula
Percentage change = [(170 - 791) / 791] x 100
Subtract the new number by the original number
170 - 791 = -621
-621 ÷ 791 = -0.7850821744627055
-0.7850821744627055 x 100 = -78.51%