-82.47% is the change from 970 to 170
Calculation steps:
[( 170 - 970 ) ÷ 970] x 100 = -82.47%
Formula
Percentage change = [(170 - 970) / 970] x 100
Subtract the new number by the original number
170 - 970 = -800
-800 ÷ 970 = -0.8247422680412371
-0.8247422680412371 x 100 = -82.47%