Val (huh, I didn't know that was an actual name) scored around 742 points, 30% fewer than Peeta. Since, 30% of 1060 can be found by multiplying 30% as a decimal (0.30), which means that 30% of 1060 is 318. However, it doesn't say that Val scored 30% of the points Peeta scored. No, it says that Val scored 30% LESS than the score Peeta scored. So, we're subtracting.
1060 - 318 = 742
So, Val scored 742 points.