-19.67% is the change from 239 to 192
Calculation steps:
[( 192 - 239 ) ÷ 239] x 100 = -19.67%
Formula
Percentage change = [(192 - 239) / 239] x 100
Subtract the new number by the original number
192 - 239 = -47
-47 ÷ 239 = -0.19665271966527198
-0.19665271966527198 x 100 = -19.67%