Elena wants to make sure that people reviewing the worksheet understand it displays sample data.

Add a shape to the worksheet as follows to provide this information:

a$.$ In cell E$30,$ insert a Callout: Line shape from the Callouts section of the Shapes gallery.

b$.$ Move the callout line so that it points to the bottom of the "Total Invested" column.

c$.$ Type Sample data only in the callout shape.

d$.$ Apply the Subtle Effect $-$ Turquoise, Accent $1$ shape style to the callout shape.