Acct 212 question need help answering

In its Form 10-K Match Group, Inc., describes itself as follows: Match Group, Inc., through its portfolio companies, is a leading provider of dating products available globally. Our portfolio of brands includes increase our users' likelihood of finding a meaningful connection.... Revenue at Match increased from \$1,020.4 million in 2014 to \$2,051.3 million in 2019, for an increase of 101 percent. In the same period, operating income increased from $193.6 million to $648.5 million, for an increase of 235 percent. Required Write a memorandum that explains how a 101 percent increase in revenue could cause a 235 percent increase in profits. Your memo should address the following: a. An identification of the accounting concept involved. b. A discussion of how various major types of costs incurred by Match were likely affected by the increase in its revenue. c. The effect of the increase in sales on Match's margin of safety