Return on equity is the rate of returns you earned on your equity investments

Return on net worth is the rate at which your entire property is growing (Your net worth is the sum of all your assets - all your liabilities)

return on equity

Cost of equity refers to the rate of return that shareholders expect in return for their investment and as compensation for the risk taken by them in investing into that company.

So, from the shareholders' point of view, this expected rate of return (cost of equity) would be the opportunity cost of equity, i.e. the rate of return forgone by investing in the company rather than considering alternative investment options.

Cost of equity is determined through various different models such as the Capital Asset Pricing Model (CAPM), Gordon model and many others.

Here is more information and calculator of cost of equity with formulas and examples

https://trignosource.com/Cost%20of%20equity.html

The total liabilities because Assets = Liabilities + Owner's Equity.

Corporations can borrow money to finance their company, therefore however much you borrow affects assets and owner's equity.

Return on asset= profit margin × asset turnover

Return on equity= return on asset × equity multiplier

so, return on equity is more comprehensive