How does this grade thresholds work?

[Spirit95]

If you check last year's Physics, Chemistry and Biology's grade thresholds, you would notice that the total mark is out of 200. However, for those doing P1, P3 and P6, the total mark doesn't exceed 160! So, is the mark they have put for A* for example, considered out of 200 or out of 160?

 

[Micro961]

I wanted to ask the same question!!!