Time Period Assumption:In financial statements, like income statement, statement of stockholders' equity, and statement of cash flow, it is extremely important to have written down the period of time of the information that you are presenting. You must detail the period of time by registering the month, the year, and even the days or weeks. E.g. First three months ending on December 31, 2020.
Cost Principles: In accounting terms, the cost refers to the original amount of money paid for something. It doesn't matter if the good was bought yesterday or twenty years ago. This is expressed in financial statements as historical cost amounts.
Inflation does not affect the Cost Principle, it never represents the amount of money the person or company would earn as an extra if they sold the asset or good on its current value.
Going-On Concern: This principle states that companies will continue to have their debts and commitments unless an accountant considers that the company will not be able to liquidate its debts and will have to disclose this assessment. Basically, a company still is a company, unless they face a bankruptcy estate.