-86.87% is the change from 594 to 78
Calculation steps:
[( 78 - 594 ) ÷ 594] x 100 = -86.87%
Formula
Percentage change = [(78 - 594) / 594] x 100
Subtract the new number by the original number
78 - 594 = -516
-516 ÷ 594 = -0.8686868686868687
-0.8686868686868687 x 100 = -86.87%