What is the difference between commercial accounting and banking accounting? They obey the same Pricipe and which is complementary to the other?

 accounting principle used "to ensure that financial statements give a complete, relevant, and accurate picture of transactions and events". If an entity practices the 'substance over form' concept, then the financial statements will show the overall financial reality of the entity (economic substance), rather than the legal form of transactions (form).[1] In accounting for business transactions and other events, the measurement and reporting is for the economic impact of an event, instead of its legal form. Substance over form is critical for reliable financial reporting. It is particularly relevant in cases of revenue recognition, sale and purchase agreements, etc. The key point of the concept is that a transaction should not be recorded in such a manner as to hide the true intent of the transaction, which would mislead the readers of a company's financial statements.