On television, in newspapers, on radio often it is necessary to hear that the indicator of GDP decreased by so many percent that economic growth was such number of percent. What is represented by percent as mathematical unit and as to count it most?
It is required to you
- Basic value of parameter from which the percent, a share from the parameter or number will be calculated.
Instruction
1. The choice of base from which calculation of percent will be conducted. For example, pie weighs 3200 grams, or 3.2 kg. It is required to cut off from it 20% of its weight. In other words, if to express it in shares, then from pie it is necessary to cut off its fifth part, or 1/5 of its mass.
2. Calculation of a percentage share. If to conduct calculation in shares, then it will look so: 3200/5 = 640 gr. In other words, to cut off its part from pie 1/5, it is necessary to cut off 640 grams. If to consider as a percentage, then turns out here such scheme: 1) 3200/100 = 32 gr. The first action found out how many makes on the weight of 1% of pie, or 1/100 of its part.2) 32*20 = 640 gr. By means of the second action received that 20% of pie make 640 grams.
3. If we need to compare two any indicators, and to express result as a percentage, then it is enough to divide a basic indicator into reporting, and to increase result by 100%. Example: It is required to learn increase in productivity in the reporting period in comparison with basic if in the reporting period performance was 38000 units of production, and in basic 34000 units. If to consider in absolute expression, then growth was: 38000-34000 = 4 thousand pieces. If to consider as a percentage, then the increase in productivity will be expressed so: (38000/34000) h100-100 = 11.76%. In other words, the increase in productivity was 11.76%.