-53.9% is the change from 423 to 195
Calculation steps:
[( 195 - 423 ) ÷ 423] x 100 = -53.9%
Formula
Percentage change = [(195 - 423) / 423] x 100
Subtract the new number by the original number
195 - 423 = -228
-228 ÷ 423 = -0.5390070921985816
-0.5390070921985816 x 100 = -53.9%