title: Query Regarding DynamoDB Pricing
body: <p>I have an use case wherein, I need to read data from DynamoDB each 30 seconds.
  And the number of items the client will be reading will always be 200, now it is known that each item is less than 4KB, so this batch read will use 200 Read Capacity Units. But the 200 Read Capacity Units will be used in a 30 seconds interval, so how much would I be paying for this per hour ?
  Will it be same as 200*(0.00725/10) USD per hour or something else ?</p>