1An increase and/or decrease in quantity or degree; commonly used in statistics and graphs.
会員数の増減をグラフにまとめて報告した。
I compiled the increase and decrease in membership numbers into a graph and reported on it.
体重の増減が激しいと健康によくない。
Frequent fluctuations in body weight are bad for your health.
為替相場は日々小さく増減を繰り返している。
The exchange rate repeatedly fluctuates slightly, day by day.