# How compute saving plan going to be adjusted?

0

I am very much confused in terms of how saving plan going to be adjusted between those instances? As an example, if we purchased 4 instances, each instance would cost \$5 per hour and a saving plan would cost \$4, so we purchased a compute saving plan by committing \$13 per hour How this saving plan will be adjusted between those instances? Since 3 instances would consume \$12 how \$1 going to be adjusted? because we have purchased Rs.13 per hour saving plan?

1

Thanks for the detailed description.

Assuming that,

``````4 instances = 4 units
On-Demand rate = \$5
Compute Savings Plans rate = \$4
``````

\$13 commitment covers 3.25 units (\$13/\$4), and the remaining 0.75 unit will be charged at On-Demand rate \$5. Here is a similar scenario for your reference: https://docs.aws.amazon.com/savingsplans/latest/userguide/sp-applying.html#scenario-2

As a side note, if instance types are mixed, Savings Plans apply to the usage starting with the highest discount percentage.

weidi