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- public void MonthlyGrowthRate(){//每月營收成長率
- for(int i = 1 ; i < Revenue.length ; i++) {//從第2年度開始來做運算
- for(int j = 0 ; j < Revenue[i].length ; j++) {
- System.out.printf("%.2f%s",(Revenue[i][j]/Revenue[i-1][j]*100),"% , ");//成長率:今年/去年*100%
- // System.out.printf("%.2f%s",((Revenue[i][j]-Revenue[i-1][j])/Revenue[i-1][j]*100),"% , ");//成長率:(去年-今年)/去年*100%
- //%.2f,表算到小數點第2位,題目沒指定可忽略
- }
- System.out.println();
- }
- }
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