The comments option was not showing the first time this was posted so I am reblogging this.
” What we loses on the roundabout, we makes up on the swings”
As far as I know, this is an old Cockney saying that probably means that even if you lose something on one part of a deal you can make it up on another. It could also be interpreted in the context of businesses that offer a discount one a product only to more than make up for it by raising the price of another one.
If you know the exact origin and context of this saying please let me know.