- Teachers work 55.7 hours/week total
^{1}, and spend 9.4 hours/week marking^{2}. That’s 17%. - The average teacher salary is £38,246
^{3}, but we have to add the employer’s NI contribution of 13.8% to give an employer cost of £43,524, ignoring all overheads. - 17% of £43,524 of is £7,399. That’s what we spend on marking per teacher, per year.
- The average secondary school employs 65
^{4}qualified teachers, so the total cost per school is**£480,935**.

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