"When a faryuk is sprayed upon with the deodorant, its aroma strength decreases by 25 percent. When a faryuk is scented, its aroma strength increases by 10 percent. (In both cases, the aroma strength can become fractional)."

The question is about what is the base for calculations of 10% and 25% if we spray one faryuk several times: is it 10% and 25% of _initial_ aroma strength of a faryuk, or 10%/25% of aroma strength which we got after first aromatization?