Answer:
options I, II and IV are the changes in accounting principle
Step-by-step explanation:
Following are the changes in the accounting principles
-a change from FIFO to average cost.
- a change from completed-contracts to percentage-of-completion.
-a change from LIFO to FIFO for inventory valuation.
whereas, using a different method of depreciation for new plant assets was implemented earlier only.
So, options I, II and IV are the changes in accounting principle