How ? || बताओ बताओ #shorts

How does the short circuit form? What is its effect?

How will be the following errors rectified? Sales Book is short casted by Rs. 5,000. (ii) Sales Return Book is short casted by Rs. 500. Balance of Sales Book is carried forward short by Rs. 1,000. (iv) Balance of Sales Return Book is carried forward short by Rs. 100.