intercorp investment: equity change in "equity method" consolidation

In an equity method, there is an “investment account” on B/S. Since there is no change in debt. To balance A = L + E, can I assume there is same amount increase in equity OCI? The amount increased will be %ownership * (earning - dividend). (origianl investment will be offset by another asset account: cash).

Correct me if I am wrong. There are many ratios involve equity, just want to make sure.

yes, the offset will be in Equity. Your ownership in the Net Income in the firm flows the the IS to the equity seciton. So you report an increase of % ownership * Net income - % of dividends in the investment account, Cash goes up by % * dividends, and the equity will increase by % ownership * Net Income