-76.44% is the change from 331 to 78
Calculation steps:
[( 78 - 331 ) ÷ 331] x 100 = -76.44%
Formula
Percentage change = [(78 - 331) / 331] x 100
Subtract the new number by the original number
78 - 331 = -253
-253 ÷ 331 = -0.7643504531722054
-0.7643504531722054 x 100 = -76.44%