Multiply Rank column with a weight

Hello,

Im new to Power BI and really hoping someone's able to assist with this one. I have a table to multiple contractors and I need to rank them based on multiple measures. These measures have a weight assigned to them. My thought process is that I rank each measure seperately then multiply the rank with the weight and finally add all the weighted values together for the final ranking.

This is the calculation I have put in to rank one of the measures - 

IF (

NOT ( ISBLANK ( [Score] ) ),

RANKX (

FILTER ( ALLSELECTED ( 'sandbox contractor_scorecard'[contractor] ), NOT ( ISBLANK ([Score] ) ) ),

[Score]

)

)

The table looks like this

I need to calculate the weight in column D as Rank multiplied by weight (constant) and it does'nt do this properly. 

Thank you.