-77.51% is the change from 378 to 85
Calculation steps:
[( 85 - 378 ) ÷ 378] x 100 = -77.51%
Formula
Percentage change = [(85 - 378) / 378] x 100
Subtract the new number by the original number
85 - 378 = -293
-293 ÷ 378 = -0.7751322751322751
-0.7751322751322751 x 100 = -77.51%