$a)1\frac{5}{8}=\frac{13}{8}=\frac{13}{8}\cdot 100\%=\frac{1300}{8}\%=\frac{650}{4}\%=\frac{325}{2}\%=162\frac{1}{2}\%$

$b)3\frac{5}{16}=\frac{53}{16}=\frac{53}{16}\cdot 100\%=\frac{5300}{16}\%=\frac{2650}{8}\%=\frac{1325}{4}\%=331\frac{1}{4}\%$

$c)2\frac{1}{40}=2\frac{25}{1000}=\frac{2025}{1000}=\frac{202,5}{100}=202,5\%$

$d)10\frac{3}{200}=10\frac{15}{1000}=\frac{10015}{1000}=\frac{1001,5}{100}=1001,5\%$