# Understand Ratios with “Oomph” and “Often”

Ratios summarize a scenario with a number, such as “income per day”. Unfortunately, this hides the explanation for *how* the result came about.

For example, look at two businesses:

- Annie’s Art Gallery sells a single, $1000 piece every day
- Frank’s Fish Emporium sells 250 trout at $4/each every day

By the numbers, they’re identical $1000/day operations, right?