-56.04% is the change from 389 to 171
Calculation steps:
[( 171 - 389 ) ÷ 389] x 100 = -56.04%
Formula
Percentage change = [(171 - 389) / 389] x 100
Subtract the new number by the original number
171 - 389 = -218
-218 ÷ 389 = -0.5604113110539846
-0.5604113110539846 x 100 = -56.04%