Question $3$ Effective Rate and APY

A saving bond earns a variable rate of interest that can change six months, with compounding done monthly. The initial rate was $1\mathrm{.}8\%$ in early $2015.$ If that rate continues unchanged for the $3$ years of the bond's duration, what is the APY $($annual percentage yield$)$ on a $$10,000$ bond? $($Please answer in term of percentage, e$.$g: $2\mathrm{.}51\%,$ input $2\mathrm{.}51,$ and round to $2$ decimal places$)$