Is outbound (actually) right for you? - Watch Video
Use this free ROI calculator from Pitchlane to see whether your unit economics add up for outbound or working with an outbound agency.
Using these numbers, you can work out whether you will see a sufficient ROI to justify doing outbound with an agency.
You will need to get some estimated conversion rates from the agency to make a judgement, I would recommend being conservative with these, so you are always on the safe side.
Different agencies will charge in different ways, so you can switch between different models on the "Pay per" which will update calculations based on how the agency charges.
Something worth remembering is that this ROI calculator is based on monthly figures and then provides you with a total ROI/gross profit for the year at the end.