As at 31 December 2014, Lionel King Manufacturing Ltd (LKM) recognised an impairment loss of $400,000 on its delivery trucks with a cost of $1 million and an accumulated depreciation of $200,000 up to that date.

The original estimated useful lives of the trucks were 10 years and no revision on the useful lives was made at the end of 2014. Straight-line depreciation basis was adopted.

As at 31 December 2016, LKM forecasted that the cash inflows from the delivery trucks would increase significantly. The value in use of the trucks would be $700,000 at that date.

Determine whether a reversal of impairment loss can be recognised, and the amount of reversal.