Calculate a moving percentage over time based on last items not last time period

[D-Meak]

Hello,

I'm trying to produce a graph showing a moving percentage based on the last number of items, as when I produced a graph based on the last period of time it had some very sharp edges (due to low production quantity over time)

The desired output graph is in the style as follows.  So for a specific day it takes the last 10 items produced, counts how many items had a Defect (from the Defect column) and divides by the last 10 items to give a percentage with the defect

The data is as follows

I have a relationship between my Calendar and the Inspection Date column.

Defect Rate Last X = 
VAR NoItems = 10

RETURN
DIVIDE(
    CALCULATE(
        COUNTX(
            FILTER(
                ALL('Calendar'),
                [Date] <= MAX('Calendar'[Date])
            ),
            COUNTX(
                FILTER(
                    TOPN (NoItems, ALL('Inspections'[Defect],'Inspections'[Inspection Date]), Inspections[Inspection Date], DESC),
                    'Inspections'[Defect] = "Yes"
                ),
                'Inspections'[Defect])
        )
    ),
NoItems
)

Currently the output is as follows:

Thank you