Using single quotation marks

You are purchasing 30 widget(s) at a cost of $119.95 each. With tax, the total comes to $3,778.43.

concat removed so prints literal

You are purchasing $quantity widget(s) at a cost of $$price each. With tax, the total comes to $$total.

Using double quotation marks

You are purchasing 30 widget(s) at a cost of $119.95 each. With tax, the total comes to $3,778.43.

no escapes

You are purchasing 30 widget(s) at a cost of $119.95 each. With tax, the total comes to $3,778.43.