-83.4% is the change from 970 to 161
Calculation steps:
[( 161 - 970 ) ÷ 970] x 100 = -83.4%
Formula
Percentage change = [(161 - 970) / 970] x 100
Subtract the new number by the original number
161 - 970 = -809
-809 ÷ 970 = -0.8340206185567011
-0.8340206185567011 x 100 = -83.4%