if (plosh <= 3) {var koef = 1}
else if (plosh <= 3.3) {var koef = 0.98}
else if (plosh <= 3.6) {var koef = 0.97}
else if (plosh <= 4.0) {var koef = 0.96}
else if (plosh <= 4.3) {var koef = 0.95}
else if (plosh <= 4.6) {var koef = 0.94}
else if (plosh <= 5.0) {var koef = 0.93}
итд
подскажите плиз! как сократить