Dusit Thani Plc lost Bt662.02 m compared with net profit valued Bt15.49 m gained in Q3/1996, plunging Bt677.51 m, because: 1. Dusit Thani Bangkok Hotel decreased average room rate from Bt2,400 to Bt2,300 per room and income from food and baverage was 50.63% and 46.48% less while cost jumped higher. 2. Dusit Resort Pataya Hotel's net profit slumped Bt6 m down as average room rate was discounted from Bt1,430 to Bt1,429 but interest expenses overran by Bt2.4 m. 3. As for commercial townhouses, it realised net profit decreasing Bt30.44 m down because renters gave up contracts. 4. Net profit from administration business climbed Bt6.3 m up. 5. Interest income reduced by Bt17.18 m. 6. Expenses of office swelled by Bt9.63 m. 7. Loss on exchange rate spiralled by Bt408.31 m.