The following is a list of financial information of Global AITI LTD, a new online business in Singapore as 30 November 2022: - 

Services revenue: $21,000  

Total assets: $7,500 

Other revenues: $6,000 

Accumulated depreciation: $1,000 

Depreciation expense: $700 

Wages: $6,000

 Income tax: $500 

Online advertisement expense: $900 

Capital withdrawal by owner: $3,000 

Required: 

a) Mention what elements from the list above that are not relevant in preparing a revenue statement. 

b) Calculate the total revenue. 

 c) Total expenses.

 d) Profit after tax.