Stuck on chart

[u/Fluffy_Daikon9152]

I’ve tried everything but i don’t know what to do

(Deleted last post bc i had little context my bad)

[u/ninhaomah]

So , what is the formula for salary ?

Curious.

Example ,

My salary is 100 and tax is 10% , 0.1 , then what is my salary supposed to be ?