Hi - I'm looking to show counts alongside percentages in a graph. In excel, I would probably put the percents on a dual axis as markers with no line. Not sure what the best way to go about this in ggplot2 would be, or if someone can think of a better way to display data in two different formats on the same graph. Here's the code I'm using, thanks for the assistance!

```
library(tidyverse)
library(reshape2)
#add carnames as column
mtcars <- mtcars
mtcars$carnames <- rownames(mtcars)
rownames(mtcars) <- 1:nrow(mtcars)
mtcars$cyl <- as.factor(mtcars$cyl)
#create dataframe for graph
df <- mtcars %>%
group_by(cyl) %>%
mutate(unique_cars = n(),
num_manual = sum(am),
percent_manual = (num_manual / unique_cars)*100) %>%
select(cyl, unique_cars, num_manual, percent_manual) %>%
distinct() %>%
melt()
#graph
ggplot(data = df, aes(x = cyl, y = value, fill = variable))+
geom_bar(stat = "identity")
```