-40.13% is the change from 319 to 191
Calculation steps:
[( 191 - 319 ) ÷ 319] x 100 = -40.13%
Formula
Percentage change = [(191 - 319) / 319] x 100
Subtract the new number by the original number
191 - 319 = -128
-128 ÷ 319 = -0.4012539184952978
-0.4012539184952978 x 100 = -40.13%