change dramatically - change a lot
With the advent of mobile phones, business communication has changed dramatically.
I seriously doubt that he can close the deal.
catch up with
In order to catch up with the latest trends, I need some time.
drastic decrease / reduction
Since we moved our plant to India, we've seen a drastic reduction in overall cost.
Our goal is to expand steadily through organic growth rather than quickly through M&A.
I'm deeply concerned about these days' sales decrease.
Our cost increase was 5% last year - that contrasts sharply with other competitors' cost increase - 1% last year.