In second screenshot, it is filtered by current invoice period 21-Feb to 20-Mar.
Current actual cost is around 171K and this will grow till 20-March and after that you will get the final amount over email that you will have to pay.
2.7M cost is just forecasted plan, it is just the estimate.. so actual cost may or maynot be close to this amount depending on the usage till 20-Mar
Please don't forget to Accept Answer and Up-vote if the response helped -- Vaibhav