What is the percentage change in the net increase in cash and cash equivalents from 2018 to 2019?
{"Net cash provided by (used in) operating activities": {"2019": -1660796, "2018": 792555}, "Net cash used in investing activities": {"2019": -10582086, "2018": -5686833}, "Net cash provided by financing activities": {"2019": 22181528, "2018": 8685739}, "Net increase in cash and cash equivalents": {"2019": 9938646, "2018": 3791461}}
net_increase_2019 = df["Net increase in cash and cash equivalents"]["2019"]
net_increase_2018 = df["Net increase in cash and cash equivalents"]["2018"]
answer = (net_increase_2019 - net_increase_2018) / net_increase_2018 * 100.0