Sales Multiplier Issue

So my company has that policy of applying the sales multiplier and we got two types here.

Firstly : An uplifting multiplier to 1.5% maximum for what was achieved if you exceeded your target with the same percentage your bonus is multiplied as well (as long as it's 101% or above of your target) , that's not a problem .

Secondly : A downsizing multiplier : Which is a massive problem so if your multiplier is below 100% your commission is being impacted as well, let's say you've achieved 50% of your target you're not getting the 50% you've made you're getting only 25% so that's a 50% of the 50% (only half what you sold is being commissioned) which I can see an extremely unfair specially when you know the worst scenario you can get absolutely nothing of what you sold if your multiplier is below 50% of your target.

An example for that you've received 100 calls and your sales percentage is 49% (below 50%) this means that you lost all of the 49 deals you've closed and only to receive your basic salary which is pretty weak with No Commission at all.

Could you share your experience about that and if any other companies are doing the same?

Thanks,