Hey, can I pile on too? I mean, I'm fully aware that picking on each other is neither constructive nor helpful, but oh boy, does it look fun. I want some too!
@chairbaby: While playing World of Warcraft, you may have noticed that hovering your mouse over a user interface element or an object in the world brings up some window with some text in it. This is called a "tooltip", and it is designed to provide extra information about the thing that the mouse pointer is over. The character panel is no different, and you will find that opening it, and hovering your mouse over the "Speed" statistic will not only give you your overall movement speed, in %, with a precision of two decimal places (this may be new for others too?), but it also shows your total "Speed Rating".
This is the basic curiosity that Chops was likely expecting of you. Because from here, when you unequip something with Speed on it, and see the rating change, and the speed value change, you probably would have figured out every single thing that you asked about in the original post -- from the weapon proc counting towards speed rating, through how much rating a Shadowlands gem gives, all the way down to how much more rating besides the weapon you would need to get back to where you were (not to mention possibly being able to pinpoint the exact rating you need for that 49% value that you did know about).
If you just did this one basic thing: hover over speed on your character sheet, this thread would likely not exist at all, for better or for worse. Unless, of course, you were just trying to say "Hey guys, I've got a speed proc on this axe, am I cool or what?", in which case, I'd like to inform you, that there is actually a thread specifically for that kind of stuff. I'll even link it for you, here:
What did you loot today?=).
@Chops: did you look at the results of that Google search before closing the tab/window? None of those results would have been any useful whatsoever in explaining that "Speed Rating converts to % Speed similar to how secondary stats convert to their % values". It's actually pretty ironic, and I at least find it absolutely hilarious. Not even the warcraft wiki says this simple sentence in a place where someone specifically looking for it would find it. Of course, mousing over the Speed stat on the character sheet makes such an explanation generally unnecessary, but still...
@Rahn: I think the reasons these numbers are not written down into a guide are that: 1) they are different for every level, 2) they are very easy to check and figure out for any given level just by looking at the character panel and equipping/unequipping stuff, and 3) even if you do know how much rating you need, you have absolutely no control over the loot procs you get -- which makes the number pretty much meaningless until you have gear to shuffle around.
In any case, if you do want to write a guide/faq about speed (which I'd probably offer to chip in with too), you may want to include the fact that speed rating has diminishing returns. I don't think this comes into play that much at the lower levels where a few gems besides the doublets will cap you, and for removing each one you're likely always fiddling with max DR (40% value) already, but this can matter at higher levels. At the same time, finding the breakpoints for each level (besides maybe the most popular ones) is probably more hassle than it's worth.
PS:
@chairbaby: I'm sorry, but this:
again, im new to this, trying to learn, dont wanna help? dont comment
is pure arrogance. I don't think any respectable person would/should react like this to the criticism you got on a public forum. Just mentioning it because you're "new to this".