60 students / .68 = 88 students admitted
If we assume the yield is similar this year, then
80 students / .68 = 118 students admitted
Of course, indications point to this year being less attractive than last, due to the reduced scholarship offering. Of course, they've had a chance to make a splash and get their name out. Time will tell, I guess.

If they think the yield will drop to 50%, then
80 students / .50 = 160 students
*edited for English