Slo-pitch leagues rank on record, and because most games run on a time limit, ties are common. The usual way to handle them is points: 2 for a win, 1 for a tie, 0 for a loss. Winning percentage with a tie as half a win gives exactly the same order.
Many leagues also cap runs per inning, often letting the final inning go uncapped (an open inning). That keeps scores closer and run differentials smaller than you would see in fast-pitch, which makes run differential a fair tiebreaker.
Coed leagues add rules of their own, such as alternating the batting order, which change how games play but not how the table is kept.