A bronze brightvale job coupon is worth between 220k and 240k. You can use it to do super jobs at the fearie employment center.

There are multiple job coupons and each of them can be used in a different way. The Job Value is the number of times the coupon can be used before disappearing.

For example, a Silver Job Coupon can be used 4 times and every time it's used, it's downgraded to the next lowest job coupon. (Silver to Red to Blue to Green to Green disappears)

So in order to know if the coupon is worth to use it, you should know how much profit can be made with every job. Your coupon will let you do 9 jobs. Bronze Brightvale jobs usually are worth around 40000. Green brightvale around 20000. So that's 60k right there.

But then it becomes more difficult. The higher "normal" super jobs (purple job coupon, pink, gold and silver) get taken very easily - you will have to spend a lot of time in the center to find those. Silver is around 30000 profit, but the other ones I don't know (I haven't seen them around in a while). Blue around 4000, green around 3000, red around 10000. Since silver alone is worth 30k, I imagine the others are worth a lot more, In order to make profit, these 3 sorts of jobs have to have a reward together of at least 140k.

Also, keep in mind you can only do 3 jobs a day (at least, normal jobs, don't know about super ones). So even if you could make money by using it (which I don't know for sure, but I think you might), you should ask yourself if it's worth your trouble - especially since the normal higher jobs are so difficult to find.

Hope that answers your question!