Perecentage Increase =
EG1) Increase 210 cm by 30%
You do:
100% + 30% = 130%
130 divided by 100 = 1.3
210 x 1.3 = 273
273 cm
EG2) Increase 600g by 14.5%
You do :
100% + 14.5% = 114.5 %
114.5 divided by 100 = 1.145
600 x 1.145 = 687
687g
Percentage Deccrease =
EG1) Decrease 50m by 60%
You do:
100% - 60% = 40%
40 divided by 100 = 0.4
50 x 0.4 = 20
20m
EG2) Decrease 700cm by 60%
You do:
100% - 60% = 40%
40 divided by 100 = 0.4
700 x 0.4 = 280
280cm
Questions
1. Increase 32g by 25%
2. Decrease 32g by 25%
3. Increase 540m by 4%
4. Decrease 540m by 4%
5. Decrease 8000kg by 6.5%
6. Increase £2,500 by 25%, 80%, 11% and 3%
EG1) Increase 210 cm by 30%
You do:
100% + 30% = 130%
130 divided by 100 = 1.3
210 x 1.3 = 273
273 cm
EG2) Increase 600g by 14.5%
You do :
100% + 14.5% = 114.5 %
114.5 divided by 100 = 1.145
600 x 1.145 = 687
687g
Percentage Deccrease =
EG1) Decrease 50m by 60%
You do:
100% - 60% = 40%
40 divided by 100 = 0.4
50 x 0.4 = 20
20m
EG2) Decrease 700cm by 60%
You do:
100% - 60% = 40%
40 divided by 100 = 0.4
700 x 0.4 = 280
280cm
Questions
1. Increase 32g by 25%
2. Decrease 32g by 25%
3. Increase 540m by 4%
4. Decrease 540m by 4%
5. Decrease 8000kg by 6.5%
6. Increase £2,500 by 25%, 80%, 11% and 3%