A large store has only three departments, Clothing, Produce, and Electronics. The following figure shows the percentages of revenue and cost from the three departments for the years $2016, 2017$ and $2018$. The dotted lines depict percentage levels. So for example, in $2016$, $50\%$ of store's revenue came from its Electronics department while $40\%$ of its costs were incurred in the Produce
In this setup, Profit is computed as (Revenue – Cost) and Percentage Profit as
It is known that
1. The percentage profit for the store in $2016$ was $100\%$.
2. The store’s revenue doubled from $2016$ to $2017$, and its cost doubled from
$2016$ to $2018$.
3. There was no profit from the Electronics department in $2017$.
4. In $2018$, the revenue from the Clothing department was the same as the
cost incurred in the Produce department.
What was the percentage profit of the store in $2018$ _________