NW Co is considering investing $46,000 in a new delivery lorry that will last for 4 years, after which time it will be sold for $7,000. Depreciation is charged on a straight-line basis. Forecast operating profits/(losses) to be generated by the machine are as follows.
Year $
1 16,500
2 23,500
3 13,500
4 (1,500)
What is the return on capital employed (ROCE) for the lorry (using the average investment method, to the nearest %)?