cut (one's) losses

Translations
свести убытки к минимуму
After several failed attempts, he decided to cut his losses and move on.
После нескольких неудачных попыток он решил свести убытки к минимуму и двигаться дальше.
Definitions
To stop doing something that is causing loss or damage in order to prevent the situation from getting worse; to accept a loss and move on rather than risking further losses.