Yes, you can see on the right side of the maps on best performances on your profile there is 2 pp written, one in pink and one in white, the pink one is the amount of pp that play is worth while the white one is the amount of pp that play actually gives you.
You can see there is a weight written on each map in percentage, the lower you go the lower the weight gets; so if you have 3 maps that gives you 100pp, the first one will give you 100pp, the second one will give 95pp,the third one will give you 90pp, the lower the weight gets the less amount of pp you will get from a map.