Credit Math Example: (Autor: Kelly Gerrow)
If you have 10 MB of feature storage for an entire month, it will cost 2.4 credits for the entire month.
If you publish and delete feature storage throughout the month, the credit charges reflect these changes due to the size of feature storage scheduled hourly.
This isn't the exact math as I have rounded the numbers and estimated the month, but should provide an idea about how the hourly storage is calculated.
Example if you had a 10 MB service and had it hosted in ArcGIS Online for 6 hours, it would be
2.4 credits per month ÷ 744 hours (month of March) = 0.00322 (credits per hour)
0.00322 credits * 6 = total of 0.019 credits for storage for the six hours.