vertical analysis is conducted for two or more periods ...is it correct???

Dear student
Vertical analysis is conducted to compare the financial statement of a firm for two or more periods and to compare the financial statements of one company with another company across the same industry. It is a very easy approach to compare the financial statements because one can see the proportional values of account balances.

Thus vertical analysis is used to conduct comparison within the firm for two or more years or with other firms accross the same industry.

Regards