Name the accounting principle applied for below. $[4]$

No$.$ Details accounting principle

$1$ Transactions should only be recorded if they can be quantified in monetary terms.

$2$ The financial statements reflect the value of motor vehicles based on its original purchase price.

$3$ Expenses that have been incurred but not yet paid are included in the income statement.

$4$ When Jane started her business, she recorded the purchase of a calculator as an office expense instead of categorizing it as office equipment.