-76.36% is the change from 330 to 78
Calculation steps:
[( 78 - 330 ) ÷ 330] x 100 = -76.36%
Formula
Percentage change = [(78 - 330) / 330] x 100
Subtract the new number by the original number
78 - 330 = -252
-252 ÷ 330 = -0.7636363636363637
-0.7636363636363637 x 100 = -76.36%