FALL IS INDICATED IN G.N.P. GROWTH
Govt economists expect GNP rate to slow substantially in 2d qr to less than 5%, compared with new Commerce Dept estimate of 8.7% in 1st qr, revised upward from 8.5%; chief reason is decline in consumer spending; dept repts revised 1st qr profits at $85.7-billion annual rate after taxes, $142.8-billion before taxes (M)