The cost of upgrading a service with a monthly (30 days) or annual cost is calculated in two different ways depending on the service:
- full cost - in this case, the cost of the upgrade, is independent of the number of days until the service is due to be renewed;
- accrued - in this case, the cost of the upgrade is recalculated according to the hours left until the service is due to be renewed.
The accrual rate for the upgrade is recalculated according to the hours up until the service is due to be renewed, and so based on the actual availability for the upgrade user.
30-day services are provided for 730 hours (365 days multiplied by 24 hours and divided by 12 months), so the accrual rate is the cost of the upgrade divided by 730 and multiplied by the number of hours left until the service is due to be renewed.
Annual services are provided for 8,760 hours (365 days multiplied by 24 hours), the accrual rate is therefore the cost of the upgrade divided by 8,760 and multiplied by the number of hours left until the renewal of the service.
Example of a service with a 30-day monthly cost of 100 Euros (activated on 10 June) and a service upgrade equal to 150 Euros (activated on 27 June).
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30 days of service |
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13 days of upgrade |
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150 Euros / 730 hours = 0.20
55 Euros/hour
13 days left until the service is due to be renewed = 312 hours
The cost of the upgrade is therefore:
0.20
55 Euros/hour x 312 hours = 64.11
60 Euros
So for an accrued upgrade, the customer will pay 64.11
60 Euros instead of 150 Euros.