The following bar graph shows receipts and expenditure oft business firm over 5 years. Gain = Receipts - Expenditure. What is the percentage of increase in expenditure from 2018 to 2019 as compared to 2018?

$6\frac{1}{4}$ $8\frac{3}{4}$ $2\frac{1}{2}$ $6\frac{2}{3}$

$6\frac{2}{3}$

Increase in expenditure in 2019 = 5 Percentage increase compared to 2018 = \(\frac{5}{75}\) × 100 = $6\frac{2}{3}$