-39.81% is the change from 319 to 192
Calculation steps:
[( 192 - 319 ) ÷ 319] x 100 = -39.81%
Formula
Percentage change = [(192 - 319) / 319] x 100
Subtract the new number by the original number
192 - 319 = -127
-127 ÷ 319 = -0.3981191222570533
-0.3981191222570533 x 100 = -39.81%