Recombinator success chances displayed are not statistically proven

Recombinator with success chance of 70% destroys both items with 90% probability. And it's not a joke, something is really busted in rolls in Recominator, chances for succes is already very low on display values, that makes this cool tool almost useless for SSF and players without budget (and rich players do not need it at all, because they can buy items).

From 20+ tries to recombine something with 50-70% chances I got only 2 successful outcomes, which stands against statistics and math rules. Please, check the chance in Recombinator.

Also, it would be a good feature to have 2x chances for 2x-3x price and 3x chances for 3x-5x price (with 90-95% max chance of success).