$4.$ Gudrun has created a pie chart representing the percentage of the parks' budget that went to each park in $2021.$ Modify the chart in the range G$2$:O$20$ as follows:

a$.$ Enter $2021$ Park Spending as Percentage of Total as the chart title.

b$.$ Change the data labels to include the Category as well as the Percentage, and position the labels in the Outside End location.

c$.$ Remove the Legend from the chart.