The Federal Income Tax is wrong, please help me understand

Using the wage$-$bracket method for manual payroll systems with Form W$-4$ from $2020$ or later in Appendix C$.$ calculate the federal withholding amounts for the following employees. No box was checked in Step $2,$ and no additional information was included in Step $4.$

Note: Round your intermediate calculations and final answers to $2$ decimal places.

$\backslash$table$[[$Employee$,$Filing Status,Dependents,$\backslash$table$[[$Pay$],[$Frequency$]],\backslash$table$[[$Amount per$],[$Pay Period$]],\backslash$table$[[$Federal$],[$Income Tax$]]],[$L$.$ Abbey,Head of Household,Semimonthly,$$,2,770,$$$,1,245\mathrm{.}43$