Measure's value is not calculating in Item-Week Level

In workbook WB1, the base intersection is str,itpt,week.

There is a worksheet WS1 within this, having intersection day_itpt_str.

There are 3 measures M1,M2,M3. All are having intersection day_itpt_str. The rule calculation is like M3=((M1-M2)/M2)%.

Default Agg: M1 : total

Default Agg: M2 : total

Default Agg: M3 : recalc

Default Spread: M1 : prop_pop

Default Spread: M2 : prop_pop

Default Spread: M3 : none

When we are viewing in Item - Day level, the calculations are showing correct, but when it is view in Item - week level, the values are showing 0.00%. But also in SubRange - Week level, it is showing correct values.