Cvb is corporate variable bonus
Ie mid year and end of year bonus in this thread context.

Different companies may have different definitions. But for this company cvb consist of mid year and end of year.

Variable coz sometimes mid year is 0.6mth can be 0.5mth, can be nothing but rare.

End of year can be 1mth, 1.1 or 1.2, or 0.9