-66.94% is the change from 487 to 161
Calculation steps:
[( 161 - 487 ) ÷ 487] x 100 = -66.94%
Formula
Percentage change = [(161 - 487) / 487] x 100
Subtract the new number by the original number
161 - 487 = -326
-326 ÷ 487 = -0.6694045174537988
-0.6694045174537988 x 100 = -66.94%