százalékkal

Százalékkal is a Hungarian instrumental form of the noun százalék (percentage) used to express the amount by which something changes, measured in percent. In practice, it functions as an adverbial modifier indicating the size of a change rather than the absolute proportion itself.

Usage and grammar: Százalékkal is attached to a numeral or a numeral phrase to denote how much a value has increased or decreased. It is common in economics, statistics, and reporting. The construction can be formed with digits or spell-out numbers, e.g., 12 százalékkal, tíz százalékkal, or 3,5 százalékkal to indicate a percentage change. Verbs of change such as növekedett, emelkedett, csökkent, vagy visszaesett often accompany this form, as in árak 12 százalékkal nőnek or árak 3,5 százalékkal csökkennek.

Distinction from százalékban: Százalékkal expresses the magnitude of a change (by how many percent), while százalékban or százalékos kifejezés refers to a proportion expressed as a percentage. For example, "a részesedés 25 százalékban fejeződik ki" describes a value expressed as a percentage, whereas "a bevétel 12 százalékkal nőtt" describes the amount of growth in percentage terms.

Etymology and notes: Százalékkal is formed from százalék plus the instrumental suffix -kal, signifying "with a percentage" in a changing context. It appears primarily in formal, statistical, or financial writing and is widely understood in everyday Hungarian when discussing changes or comparisons expressed in percent.