In the menu option "Primary data -> price variance" , you enter a variance percentage for a cost element , either by controlling area or for a period interval within a fiscal year.
If you have defined variance percentages, the SAP System records costs, including variances, when primary postings are made.
You posted $1100 to account 400000. In this account, you defined a primary data, input price variance of 10%.
The $1100 includes a 10% input price variance: $100
If 110% = $1100, then 10% = $100.
Define the input price variances to fit your requirements.