How do I know how much of the refund covers child care expenses?

My partner has the lower income of the two of us and therefore the child care expenses go to him in the refund, however he wants to transfer the appropriate amount back to me once it is received because I'm the one actually paying for the child care. How do we figure out what the dollar amount is from his refund that is actually from the child care expenses? Is it a percentage of the amount I entered under child care? Is there a breakdown of what comprises your refund amount (child care, RRSP, etc.) somewhere in the program that we missed? Thanks!