In Problems $7\mathrm{.}37$ through $7\mathrm{.}38$ calculate the magnetic declination in $1870$ based on the following data from an old survey record.

$\backslash$table$[[\backslash$table$[[1870$ Magnetic$],[$Bearing$]],\backslash$table$[[$Present Magnetic$],[$Bearing$]],\backslash$table$[[$Present Magnetic$],[$Declination$]]],[N14{20}^{\text{'}}E,N5{30}^{\text{'}}E,8{15}^{\text{'}}W$