How many managerial weapon to increase profit day to day and must be able to satisfy to customer ?

Quality products , affordable price for customers, demand able products ,availability , ,etc. ...............on behalf of customers which are always updated according to market circumstances.....  

best product,customer services,feedback,affordable price,product must be  customer according,contact to customer till that time task not finish.

skills and keys are always there but doing what customer needs is the best