-97.58% is the change from 165 to 4
Calculation steps:
[( 4 - 165 ) ÷ 165] x 100 = -97.58%
Formula
Percentage change = [(4 - 165) / 165] x 100
Subtract the new number by the original number
4 - 165 = -161
-161 ÷ 165 = -0.9757575757575757
-0.9757575757575757 x 100 = -97.58%