$18,750 unfavorable variable overhead spending variance = $360,000 â $341,250. Variance is unfavorable because the actual variable overhead costs are higher than the expected costs given actual hours of 97,500. $68,250 unfavorable variable overhead efficiency variance = $341,250 â $273,000.
The function of cytotoxic T cells, also called killer T cells or cytotoxic T lymphocytes, is to protect the body from disease and infection. They do so by killing diseased cells. T cells are white blood cells that are part are the body's immune system. White blood cells defend your body against disease, cancer, infections and foreign substances.
The CD4 cells called helper T cells help B lymphocytes recognize certain antigens. Amplifier T lymphocytes are CD8 cells that enhance the activity of cytotoxic T cells. Suppressor T cells are CD8 cells that suppress antibody synthesis by their action on helper cells and B lymphocytes.