Equity method or Acquisition method?

If I have only less than 20%, but have control over the company which method should be used?

Fair value method or Acquisition?

Again if I own more than 50% but no control, which method?

I believe it’s influence over %

If you have control, you’d use consolidation. If you have influence, but no control, equity. If you have neither, the financial instrument methods with different classifications.

I don’t know if you would ever have control tho if you have less than 20%…