Has anyone used a 1-100 rating system with Microformats and seen it work in SERPS? I expect that a <div class=rating>50</div> would produce a 2.5 star rating on the result snippet but am hoping for any experience.Would it be unadvisable to use a 1-100 rating with microformats? If that's the case I could do some backend work to do the math on the rating to expose a 1-5 rating within some JSONLD markup.<script type=application/ld+json>    { @context: http://schema.org,        @type: Business,        name: Joe Businessman,        telephone: (174)222-1012,        description: desc,        aggregateRating:        {            @type: AggregateRating,            ratingValue: 2.5,            reviewCount: 30        }}</script>UPDATEI received an awesome answer! But also for others: GoogleRatings that don't use a 5-point scale: By default, Google assumes  that your site uses a 5-point scale, where 5 is the best possible  rating and 1 is the worst, but you can use any other scale. If you do,  you can mark up the best and worst ratings, and Google will scale that  to the 5-star system used in rich snippets.
Proper Microformats for a 1-100 and or a 1-10 rating
json ld;microformats;user reviews
Google supports a wide range of ratingValues should it be 1-5, 1-6, 1-10 or even a 1000. You do however have to use bestRating since Google assumes 5 by default. It's very flexible and can even start from zero, one or even ten using worstRating.1-100 Example on Schema AggregateRating<script type=application/ld+json>{  @context: http://schema.org,  @type: Product,  aggregateRating: {    @type: AggregateRating,    bestRating: 100,    ratingCount: 24,    ratingValue: 87  },  image: dell-30in-lcd.jpg,  name: Dell UltraSharp 30\ LCD Monitor,  offers: {    @type: AggregateOffer,    highPrice: $1495,    lowPrice: $1250,    offerCount: 8,    offers: [      {        @type: Offer,        url: save-a-lot-monitors.com/dell-30.html      },      {        @type: Offer,        url: jondoe-gadgets.com/dell-30.html      }    ]  }}</script>Since Google only will display upto 5 stars you will find that they will convert your scoring to the 5 star system, but it will have a text entry to the right of it.This would look something like this: Google also supports using percentages between 1-100, as seen on Rotten Tomatoes.Some more examples include: