Substantial gearing reduces the WACC, but It's not at all generally the case. From time to time the credit card debt financing is large enough that case the increase in the expense of equity nullify the credit card debt funding impact on WACC or often it improves the WACC https://paxtonybgfh.shotblogs.com/a-secret-weapon-for-pay-someone-to-do-my-case-study-44528119