-82.09% is the change from 949 to 170
Calculation steps:
[( 170 - 949 ) ÷ 949] x 100 = -82.09%
Formula
Percentage change = [(170 - 949) / 949] x 100
Subtract the new number by the original number
170 - 949 = -779
-779 ÷ 949 = -0.8208640674394099
-0.8208640674394099 x 100 = -82.09%