Inflation is why the awarded interest rate is 6.75%.

That rate was determined by the Consumer Credit Commissioner of Texas, which calculated it using the federal reserve rate, which itself is selected to meet an inflation goal, incorporating current inflation levels as well as the predicted inflationary effect of changing the server rate.

If inflation was zero, the interest rate would have been lower. If inflation were double, that rate would be higher.

Interest is awarded to counter the affects of inflation and the loss of opportunity cost. They aren't accounted for individually, instead inflation is part of the equation.