Using the picture above, how much interest would Counterparty B earn in a year

if the SOFR was $4\%$ for $180$ days and $4\mathrm{.}5\%$ for $180$ days? Round your answer to

two decimal places. Also, write out your formula. For example if I was calculating

Present Value, I would type out $-$ PV $=100/(1+\mathrm{.}08)5=146\mathrm{.}93$

$$50,000,{000}^{**}$