When calculating the win and place percentages,
the percentage for the place sum, is the 1st considered as the place to, or just 2nd and 3rd ?

For example,
Horses total races is 10.
From 10 races it has had 2 wins.
So it's win strike rate is 20 %.
But from it's 2nd and 3rd placings it had
1 2nd and 2 3rd's
So then that makes it a 30% palce strike rate.

OR
is it 2 win's, 1 2nd, and 2 3rd's
Total of 5 "placings",therefore 50% Place strike rate ?