Mathematics · Data Interpretation

A large store has only three departments: Clothing, Produce, and Electronics. In 2016, the percentage profit of the store was 100%. The store's revenue doubled from 2016 to 2017, and its cost doubled from 2016 to 2018. There was no profit from the Electronics department in 2017. In 2018, the revenue from the Clothing department was the same as the cost incurred in the Produce department. What was the approximate difference in profit percentages of the store in 2017 and 2018?