Add another rule of work to the resource.
Read how to do this
here.
Now you have two rules.
Decide which of them should have a different number of tickets.
Open the settings form of this rule and specify a required Total share count value.
Then click on the intersection of this rule and a price option.
In the form opened, specify a desired Share count for the price option.
You will get this configuration:
See this example in action: