20% less on 400 = 80% of 400 = 400*80/100 = 320
30...
25% less.
(1-0.30)*400 0.7*400 280 ■
20% = 1/5 = 0.2
20% of 250 is 50
20 percent in 3850 = 77020% of 3850= 20% * 3850= 20%/100% * 3850= 770
2o
50% of 20 = 50% * 20 = 0.5 * 20 = 10
67.5% of 400 = 270
17.5 percent of 400 is 70
9 percent of 400 is 36.
0.6 percent of 400 is 2.4