ggplot(areas, aes(x = RETAILER, y = Difference), label=sprintf("%0.2f", round(areas$Difference, digits = 2))) +
geom_bar(stat = "identity", aes(fill = RETAILER), colour = "black") +
scale_y_continuous("Percentage", labels = percent_format()) +
geom_text(aes(label = paste(Difference * 100, "%"),
vjust = ifelse(Difference >= 0, -1.5, 1.5))) +
theme_classic()