One of my friends Salary was around 90000 pm and tax was arnd 6500 , working below will help you to understand question better..
Gross Salary P.M 90000
tax P.M 6500
Insurance burden P.M 12000
Rent Payable to mother P.M 25000
House Hold Exp(food etc)P.M 20000
Disposable income(Balance left over) P.M 26500
Now his wife has filed divorce case they have 2 kids namely 8 years and 6 years wife was working as freelancer earlier and average income per month was around 16000 , but now due to this episode he lost job and some how manage to get another job where he will get 50000 p.m gross because as per his current expenditure structure he will left out with maximum 12500 before household expense , now what all documents he need to submit to judge Salary Slip , last 3 month Bank statment etc will do.Judge Consider Past salary or grant as per present Salary
so now how much maintanance can his wife get??