Digital Equipment said it is “comfortable” with...

Digital Equipment said it is “comfortable” with analysts’ estimates that it will earn $1.50 to $1.70 per share in the quarter ending Dec. 30, compared to $1.81 a year earlier . . . W. R. Grace & Co. completed its previously announced acquisition of Hungry Tiger Inc. of Van Nuys . . . Citing the rising value of the Japanese yen against the dollar, Nissan Motor is raising the prices of its cars and trucks by an average of $400 per vehicle, effective Dec. 2.