Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
squander [ˈskwɔndər] vt (money) прома́тывать (промота́ть perf) (chances) растра́чивать (растра́тить*perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.