To add a percentage (%) to a number, you can use this formula:
Final Value  =  inicial value  + 

×  inicial value 
Replace the inicial value (100) and the percentage to add (10) in the formula:
Inicial Value = 100, Percentage = 10
Final Value = 100 + (^{10}/_{100} × 100)
Divide the percentage (10) by 100 to get the percentage in decimal form. You can do this by just moving the decimal point 2 places to the left:
Final Value = 100 + (0.1 × 100)
Multiply the percentage in decimal form (0.1) by the inicial value (100):
Final Value = 100 + 10
Add the result (10) to the inicial value (100) to get the final value:
Final Value = 110 (Answer).
This is a similar problem to the above.
To add a percentage (%) to a number, use the same formula as above:
Final Value  =  inicial value  + 

×  inicial value 
Replace the inicial value (10) and the percentage to add (100) in the formula:
Inicial Value = 10, Percentage = 100
Final Value = 10 + (^{100}/_{100} × 10)
Divide the percentage (100) by 100 to get the percentage in decimal form. You can do this by just moving the decimal point 2 places to the left:
Final Value = 10 + (1 × 10)
Multiply the percentage in decimal form (1) by the inicial value (10):
Final Value = 10 + 10
Add the result (10) to the inicial value (10) to get the final value:
Final Value = 20 (Answer).
10 plus 0.1% is 10.01  
10 plus 0.15% is 10.02  
10 plus 0.2% is 10.02  
10 plus 0.25% is 10.03  
10 plus 0.3% is 10.03  
10 plus 0.35% is 10.04  
10 plus 0.4% is 10.04  
10 plus 0.45% is 10.04  
10 plus 0.5% is 10.05  
10 plus 0.55% is 10.05  
10 plus 0.6% is 10.06  
10 plus 0.65% is 10.06  
10 plus 0.7% is 10.07  
10 plus 0.75% is 10.07  
10 plus 0.8% is 10.08  
10 plus 0.85% is 10.09  
10 plus 0.9% is 10.09  
10 plus 0.95% is 10.10  
10 plus 1% is 10.10  
10 plus 1.5% is 10.15  
10 plus 2% is 10.20  
10 plus 2.5% is 10.25  
10 plus 3% is 10.30  
10 plus 3.5% is 10.35  
10 plus 4% is 10.40  
10 plus 4.5% is 10.45  
10 plus 5% is 10.50  
10 plus 5.5% is 10.55  
10 plus 6% is 10.60  
10 plus 6.5% is 10.65  
10 plus 7% is 10.70  
10 plus 7.5% is 10.75  
10 plus 8% is 10.80  
10 plus 8.5% is 10.85  
10 plus 9% is 10.90  
10 plus 9.5% is 10.95  
10 plus 10% is 11.00  
10 plus 10.5% is 11.05  
10 plus 11% is 11.10  
10 plus 11.5% is 11.15  
10 plus 12% is 11.20  
10 plus 12.5% is 11.25  
10 plus 13% is 11.30  
10 plus 13.5% is 11.35  
10 plus 14% is 11.40  
10 plus 14.5% is 11.45  
10 plus 15% is 11.50  
10 plus 15.5% is 11.55  
10 plus 16% is 11.60  
10 plus 16.5% is 11.65  
10 plus 17% is 11.70  
10 plus 17.5% is 11.75  
10 plus 18% is 11.80  
10 plus 18.5% is 11.85  
10 plus 19% is 11.90  
10 plus 19.5% is 11.95  
10 plus 20% is 12.00  
10 plus 21% is 12.10  
10 plus 22% is 12.20  
10 plus 23% is 12.30  
10 plus 24% is 12.40  
10 plus 25% is 12.50  
10 plus 26% is 12.60  
10 plus 27% is 12.70  
10 plus 28% is 12.80  
10 plus 29% is 12.90  
10 plus 30% is 13.00  
10 plus 31% is 13.10  
10 plus 32% is 13.20  
10 plus 33% is 13.30  
10 plus 34% is 13.40  
10 plus 35% is 13.50  
10 plus 36% is 13.60  
10 plus 37% is 13.70  
10 plus 38% is 13.80  
10 plus 39% is 13.90  
10 plus 40% is 14.00  
10 plus 41% is 14.10  
10 plus 42% is 14.20  
10 plus 43% is 14.30  
10 plus 44% is 14.40  
10 plus 45% is 14.50  
10 plus 46% is 14.60  
10 plus 47% is 14.70  
10 plus 48% is 14.80  
10 plus 49% is 14.90  
10 plus 50% is 15.00  
10 plus 51% is 15.10  
10 plus 52% is 15.20  
10 plus 53% is 15.30  
10 plus 54% is 15.40  
10 plus 55% is 15.50  
10 plus 56% is 15.60  
10 plus 57% is 15.70  
10 plus 58% is 15.80  
10 plus 59% is 15.90  
10 plus 60% is 16.00  
10 plus 61% is 16.10  
10 plus 62% is 16.20  
10 plus 63% is 16.30  
10 plus 64% is 16.40  
10 plus 65% is 16.50  
10 plus 66% is 16.60  
10 plus 67% is 16.70  
10 plus 68% is 16.80  
10 plus 69% is 16.90  
10 plus 70% is 17.00  
10 plus 71% is 17.10  
10 plus 72% is 17.20  
10 plus 73% is 17.30  
10 plus 74% is 17.40  
10 plus 75% is 17.50  
10 plus 76% is 17.60  
10 plus 77% is 17.70  
10 plus 78% is 17.80  
10 plus 79% is 17.90  
10 plus 80% is 18.00  
10 plus 81% is 18.10  
10 plus 82% is 18.20  
10 plus 83% is 18.30  
10 plus 84% is 18.40  
10 plus 85% is 18.50  
10 plus 86% is 18.60  
10 plus 87% is 18.70  
10 plus 88% is 18.80  
10 plus 89% is 18.90  
10 plus 90% is 19.00  
10 plus 91% is 19.10  
10 plus 92% is 19.20  
10 plus 93% is 19.30  
10 plus 94% is 19.40  
10 plus 95% is 19.50  
10 plus 96% is 19.60  
10 plus 97% is 19.70  
10 plus 98% is 19.80  
10 plus 99% is 19.90  
10 plus 100% is 20.00  
10 plus 110% is 21.00  
10 plus 120% is 22.00  
10 plus 130% is 23.00  
10 plus 140% is 24.00  
10 plus 150% is 25.00  
10 plus 160% is 26.00  
10 plus 170% is 27.00  
10 plus 180% is 28.00  
10 plus 190% is 29.00  
10 plus 200% is 30.00 
Above, we have a grafical representation using strip diagrams (or percent bars) of 10 plus x percent, where x ranges from 0 to 100%, for your reference.
Using this 'Add Percentage Calculator' you can easily add and subtract percentages as well as see the stepbystep solution. this tool answers questions like: