A company’s sales data (in ₹ crores) across three regions from 2018…

A company’s sales data (in ₹ crores) across three regions from 2018 to 2020 is given below. Which region showed the most consistent increase in sales percentage from 2018 to 2019 and then from 2019 to 2020? Region 2018 Sales 2019 Sales 2020 Sales North 100 120 140 South 80 100 125 East 60 90 110