Chart scale & paper size

[F3]

Hi,

I want to covert few thousands’ data into a chart & print it on the paper
which dimension is 8.5 inch X 60 inches.
A error message pop up before printing , error message: “ cannot print chart
with current scale & paper size. Select large scale percentage or a smaller
paper sizeâ€

How can I increase the scale percentage of the chart to match the paper size?

Thanks & Regards