10% * 80 = 8
30% * 80 = 24
70% * 80 = 56
90% * 80 = 72
10% * 300 = 30
30% * 300 = 90
70% * 300 = 210
90% * 300 = 270
10% * 4000 = 400
30% * 4000 = 1200
70% * 4000 = 2800
90% * 4000 = 3600
10% * 3000 = 300
5% * 3000 = 150
1% * 3000 = 30
3% * 3000 = 90
10% * 700 = 70
5% * 700 = 35
1% * 700 = 7
3% * 700 = 21
10% * 220 = 22
5% * 220 = 11
1% * 220 = 2,2
3% * 220 = 6,6
