-39.63% is the change from 323 to 195
Calculation steps:
[( 195 - 323 ) ÷ 323] x 100 = -39.63%
Formula
Percentage change = [(195 - 323) / 323] x 100
Subtract the new number by the original number
195 - 323 = -128
-128 ÷ 323 = -0.39628482972136225
-0.39628482972136225 x 100 = -39.63%