-75.55% is the change from 319 to 78
Calculation steps:
[( 78 - 319 ) ÷ 319] x 100 = -75.55%
Formula
Percentage change = [(78 - 319) / 319] x 100
Subtract the new number by the original number
78 - 319 = -241
-241 ÷ 319 = -0.7554858934169278
-0.7554858934169278 x 100 = -75.55%