=IFERROR((SUM(AI17))/(((COUNTIF(H12:AF12,"9")+ COUNTIF(H12:AF12,"6")+ COUNTIF(H12:AF12,"3"))*9)+((COUNTIF(H12:AF13,"9")+ COUNTIF(H13:AF13,"6")+ COUNTIF(H13:AF13,"3"))*9)+((COUNTIF(H14:AF14,"9")+ COUNTIF(H14:AF14,"6")+ COUNTIF(H14:AF14,"3"))*9)+((COUNTIF(H15:AF15,"9")+ COUNTIF(H15:AF15,"6")+ COUNTIF(H15:AF15,"3"))*9)),"")=0% IT SHOULD BE 100% WERE AM I MESSING UP?
Solved by Z. Y. in 16 mins