Note: Net profit= Gross profit - Tax. Gross profit = Sales - Expenses. The figures for sales is given at the bottom of the bar chart and the figures for net profit is given on top of the line chart.
What is the net profit percentage of XPL in $1998?$
- $4.6\%$
- $4.8\%$
- $5.1\%$
- $6.2\%$