If a contract's service line has been entered as a recurring payment, Compass will take the annual value and divide this by 12 to reach a month figure. This figure is then multiplied by the number of months the service line is active for to get the Total Contract Value (TCV).
If the service line starts or ends part way through a month, Compass divides the monthly rate by the number of days in that month to get a daily value. The daily value is then multiplied by the remaining days in the month.