The following data were obtained from testing a 48 kVA, 4800/240 V, 50 Hz transformer.

OC test from LV side	240 V	2 A	120 W
SC test from HV side	150 V	5 A	60 W

The maximum efficiency (in %) of the transformer 0.707 lagging power factor load is ________ (up to two decimal places)