Percentage comparison of two KPIs

Hi,
I would like to ask for help. I need to make a percentage comparison of two KPIs. I would like to compare COUNT(DISTINCT “EKPO”.“BEDNR”) with COUNT(DISTINCT “EKPO”.“BEDNR”) where is set up a component filter FILTER PU_SUM(DOMAIN_TABLE(PU_FIRST(EKPO, “_CEL_P2P_ACTIVITIES”.“REF_HDR”)), EKPO.NETWR_CONVERTED) < 500;. In general I would like to know the percentage value of two same KPI, where one of them has a componenet filter.

Example:
compare a number of all Shopping carts with number of shopping carts below 500 EUR for example.

Thank you for your advice n advance.

BR

Adam