A company's annual revenue increased by $15\%$ from $2019$ to $2020$. From $2020$ to $2021$, the revenue increased by $8\%$. From $2021$ to $2022$, the revenue decreased by $5\%$. If the company's revenue in $2019$ was $R$, and its revenue in $2022$ was $kR$, what is the value of $k$?