I have added a four-check box control and set its Text property manually. Till now, it's fine, Now, I want to display the checkbox control selected values on the text label by clicking the button control. Here, I have used below code:
Set(varSelected,If(chk_Finance_1.Value,{Result:"Finance"}))
Please, suggest any solution...

I would suggest using a horizontal blank gallery for your checkboxes. Set the gallery items to:
Then for your label you can have: