Well we kind of do...we can approximate anyway w win%calculator
plugging in for the first down has Bills ball 1st and 10 at the 17 w 1:55 remaining, down 3
that's a win% of 64.55
conversely TD w Chiefs ball 1st and 10 at their own 25 1:55 remaining (assuming the kickoff goes for touchback) down 4
Bills win% at 70.61