Well to me that is a lot. It's one of several reasons I don't use Gatorade. Way too much electrolyte for most, IMHO.
I use Hammer's Heed with Endurolyte Extreme added. At the mild temps lately just using less than half a scoop. But lets use the full scoop which I'll be using when the temps are regularly over 90°F.
This is what 1 fl. oz. of my bottles contain in the stuff that's considered electrolyte:
Sodium 7.7 mg
Calcium 4.1 mg
Potassium 4.4 mg
Magnesium 2.1 mg
Manganese 0.1 mg
Chromium 1.0 mg Total weight 19.4 mg
Yours is this:
Sodium 64.0 mg (Sodium is roughly 40% the weight of sodium chloride and 28% the weight of trisodium citrate)
Potassium 22.9 mg total weight 86.9 mg
And Gatorade Endurance Formula is this
Sodium 41.2 mg
Potassium 11.6 mg total weight 52.8 mg
Electrolytes are necessary, but for a long time they've been thought of as a little is good so a lot must be better. I don't think that's correct as I don't need nearly that much.
In the 95°F temps that'll eventually get to us, the small amount of electrolytes in my bottles still does me well for three hour rides. Long ago when I did try Gatorade for cycling, I felt it was the excessive sodium content that gave me stomach issues while riding. I think Vitamin Water was the next drink I tried for cycling and it was much better with just as many Calories but much less sodium and other electrolytes.
I do agree that a lot of drinks are way too sweet. Hammer even seems to have changed their sweetener profile somewhat. They used to be slightly astringent, my son wouldn't drink it because of that. I was fine with that as they left no sticky sickly after taste. But now they too have a slight sickly sticky after taste. My son now likes it. Not sure where to go next. Maybe make my own too.