The PEG ratio is used to screen stocks by comparing the P/E ratio to income growth, but it is affected by the capital structure of the company. The EV/EBITDA ratio is used as an alternative to the P/E ratio that is capital-structure neutral. This algorithm calculates year-over-year EBITDA growth so the EV/EBITDA to EBITDA growth ratio can be used instead of the PEG ratio, creating a capital-structure neutral metric that compares valuation to earnings growth.
The version of the EV/EBITDA to EBITDA growth ratio here uses trailing EBITDA growth. PEG ratio calculations can also use the forward PEG ratio, which requires an earnings projection from the company or third-party analysts. The PEG ratio available under fundamental metrics uses the forward P/E ratio divided by the long-term average earnings growth rate. I didn't see forward EBITDA or projected EBITDA growth listed under fundamental metrics but it might be available from Morningstar or other financial sites.