i cant get the right answers tonthe rest. i have tried and all wromg but the first one

for both stocks where two-thirds of the average weight is placed on the most recent price (Do not round intermediate calculations. Round your answers to 2 decimal places.) \begin{tabular}{|l|l|l|} \hline & \multicolumn{1}{|c|}{ IBM } & AMZN \\ \hline March & $178.87 & \\ \hline April & & \\ \hline May & & \\ \hline June & & \\ \hline July & & \\ \hline August & & \\ \hline September & & \\ \hline October & & \\ \hline November & & \\ \hline December & & \\ \hline \end{tabular} Answer is complete but not entirely correct