contingent consideration in form of cash

Sir , contingent consideration in form of cash is included at EV of PV of cashflows and recorded as corresponding liability? Is liability then unwound at each year end? And also would liability be reassessed at each year end with any change accounted for in PNL? Would it be correct to say that "contingent consideration in form of cash is included at EV of PV of cashflows and recorded as corresponding liability. Liability is then unwound at each year end. Further, liability would then be reassessed at each year end with any change accounted for in PNL"