-73.81% is the change from 649 to 170
Calculation steps:
[( 170 - 649 ) ÷ 649] x 100 = -73.81%
Formula
Percentage change = [(170 - 649) / 649] x 100
Subtract the new number by the original number
170 - 649 = -479
-479 ÷ 649 = -0.7380585516178737
-0.7380585516178737 x 100 = -73.81%