问题 I start with a list of failures that take place in locations failureName, failureLocation failure a, location 1 failure b, location 1 failure a, location 2 failure a, location 1 <etc> I can transform that into this table by using summarize count() by location failureName, failureLocation, count failure a, location 1, 100 failure a, location 2, 50 failure b, location 1, 10 <etc> I'd like to transform the counts into percent on a per. failure basis, so I need to add a sum per failure name. My