4% = 1/25 = 0,04; 10% = 1/10 = 0,1; 15% = 3/20 = 0,15; 20% = 1/5 = 0,2; 25% = 1/4 = 0,25; 40% = 2/5 = 0,4; 45% = 9/20 = 0,45; 50% = 1/2 = 0,5; 60% = 3/5 = 0,6; 75% = 3/4 = 0,75; 80% = 4/5 = 0,8; 90% = 9/10 = 0,9; 100% = 1 = 1,0; 150% = 3/2 = 1,5; 30% = 3/10 = 0,3; 214% = 107/50 = 2,14.