Best's Capital Adequacy Relativity (BCAR) is a measurement to measure a company's relative capital strength compared to its industry peer composite. A company's BCAR, which is an important component in determining the appropriateness of its rating, is calculated by dividing a company's capital adequacy ratio by the capital adequacy ratio of the median of its industry peer composite using Best's proprietary capital mode. Capital adequacy ratios are calculated as the net required capital necessary to support components of underwriting, asset, and credit risks in relation to economic surplus.