할증extra charge; additional charge; premium; surcharge 급증rapid increase 증가growth; rise 증가량increased amount; multiplied amount 증가율growth rate 할증료extra charge; surcharge; premium 격증heavy swell 증가세growing trend 증강reinforcement; buildup 증대increase; expansion

감소reduction 감소율reduction ratio 감점point deduction 급감rapid decrease; sharp fall; nosedive 탕감cut; reduction; curtailment; slashing 가감addition and subtraction; adjustment 가감승제addition, subtraction, multiplication and division 감량weight reduction; weight loss 감면reduction; exemption 감봉pay cut