ten to one...
ten to one
It is extremely likely that. No one knows for sure how they're going to deal with these sales issues, but ten to one it's the employees who have to suffer the cost.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
ˌten to ˈone...it is very likely that...; very probably: Ten to one they’ll never find out who did it anyway.
Farlex Partner Idioms Dictionary © Farlex 2017