Does the estimated bill feature take into account one off peak traffic?

[woeful gale]

My project usage is about 20 USD every month. I am running a Spring Batch job that should work for about 30 minutes. During this time there should be a high load as 1.3m records will be imported to my DB. Does the estimated bill feature take into account peak traffic that only occurs once a month? Now that I start up my Spring Batch job, the estimated bill is going higher and higher. But it only runs once a month

[celest lantern]

Project ID: 29ada230-32ea-4042-85c6-71468346cf74

[woeful gale]

29ada230-32ea-4042-85c6-71468346cf74

It seems to have stabilized now

[lyric jay]

estimation is done according to the current usage and is extrapolated out to how many days are left in the month, therefore it cant take into account usage that hasnt happened yet