People are gonna yell at me for this, but it is what it is because of what it is...
If you're selling 10 beats, not on your own website, I think the best you're going to do early on is indeed $100 for an exclusive, unless you were making something insane legit and for some reason decided not to invest in yourself.
My point being, anyone buying your beats is going to see that this is a start up and they aren't going to invest more than what you did into the business end even though you might have invested thousands on the creative end. It's unfortunate, I know, but it's a different world moving from making music to selling music.
If I were starting in today's environment, I wouldn't be ashamed to see if I can sell a beat for $50 bucks. The thing is, I wouldn't price my beat at $50, I would price it at $100 just like you did recently. From there I would offer a 2 for 1 deal or a 50% discount if they posted that they bought a beat from me on their social media or something along those lines.
More than anything I would recommend extending your beat catalog as soon as you sell a beat. Let that pay for your next month's subscription as a gold member so you can add more beats, and even more importantly add discounts.
Some would say you need a website first, but not true at all. Make your catalog and you'll sell. Ask, Jacob Lethal...mr. blogspot.com.
From there, you can work on making better beats.
Your beats don't suck. You'll find the right price for them while you improve on your music as well. Don't be discouraged if you don't have your first sale in a month. It may take a year for you to find the right audience and develop your music for them.
In terms of fundamentals...mixing is your best friend. You should be watching videos everyday and applying new techniques and mastering your old ones. It's lifelong learning your own sound. It changes as you change, but right now your goal should be to catch up with yourself by making your music sound like you.
The audience wants to hear that immediately when listening, so tighten up intros as much as possible, bring in those drums as soon as possible, and make simply have a nice rhythm for rappers to rap on (which can be complicated, but there's videos for that too).
So yeah $100 is good, it's ok to discount from there, in fact it's recommended. Improve your skills as you go by literally watching something new everyday and applying it. Let the audience know a YoChamp beat is on before the tag even comes in, which is the hardest thing, but the best thing you can do for yourself. Mixing your beats will make that clearer.