Engineering department accounts for approximately one-third of
the annual budget.
Approximately 30% what percentage of the annual budget is used for Sales and Research combined.
If 8% of the annual budget is used for Marketing, approximately 18% is used for Sales
How to find the values
The values are with the knowledge of pie chart, percentage and visual estimation
a. Examining the figure, one can deduce that Engineering constitute about 120 degrees, which is 1/3of the pie chart
= 360/3
= 120
b. Sales and research is almost the size of Engineering. and this is about 1/3 of the chart
= 100/3
= 33.33% approximately 30%
c. Sales is approximately Marketing * 3
= 8% * 3
= 24%