Hi,
A calculated data expression along the lines of the following should do the trick:
PROD(IF({DE:REACH}="High 90-100%",5,IF({DE:REACH}="Medium 50-90%",3,IF({DE:REACH}="Small 0-50%",1,0))),IF({DE:IMPACT}="High 80-100%",5,IF({DE:IMPACT}="Medium 40-80%",3,IF({DE:IMPACT}="Small 0-40%",1,0))))
Ma...