Converting between decimals and percentages is easy when you know what to look for.
Remember that 1.00 = 1 whole = 100% - these things are all the same.
So 0.50 will be 50%, 0.30 = 30%, 0.10 is 10%.
E.g. using different place value positions
12.87 = 1,287%
4.56 = 456%
1.42 = 142%
0.56 = 56%
0.09 = 9%
0.005 = 0.5%
*Remember to check your place value*
Change these decimals into percentages (put it next to the decimal).
|
Decimal
|
Percentage
|
Decimal
|
Percentage
|
0.12
|
12 %
|
0.99
|
99 %
|
0.76
|
76 %
|
0.76
|
76 %
|
0.80
|
80 %
|
0.34
|
34 %
|
1.00
|
100 %
|
0.45
|
45 %
|
2.00
|
200 %
|
1.23
|
123 %
|
5.6
|
?
|
0.99
|
99 %
|
0.44
|
44 %
|
1.45
|
145 %
|
0.32
|
32 %
|
8.65
|
865 %
|
0.56
|
56 %
|
1.45
|
145 %
|
0.09
|
9 %
|
3.65
|
365 %
|
0.07
|
7 %
|
1.22
|
122 %
|
1.34
|
134 %
|
12.09
|
120.9 %
|
0.23
|
23 %
|
0.06
|
6 %
|
0.776
|
776.0 %
|
0.045
|
45.0 %
|
0.087
|
87.0 %
|
0.32
|
32 %
|
0.124
|
124.0 %
|
0.08
|
8 %
|
1.579
|
157.9 %
|
0.3
|
3 %
|
2.40
|
240 %
|
0.04
|
4 %
|
2.04
|
204 %
|
0.001
|
1 %
|
0.01
|
1 %
|
0.012
|
12 %
|
To change from percentages to decimals, do the opposite.
|
Percentage
|
Decimal
|
Percentage
|
Decimal
|
10%
|
0.10
|
66%
|
0.66
|
20%
|
0.20
|
40%
|
0.40
|
15%
|
0.15
|
30%
|
0.30
|
100%
|
1.00
|
?%
|
?
|
150%
|
1.50
|
87%
|
0.87
|
200%
|
2.00
|
12%
|
0.12
|
165%
|
1.65
|
1%
|
0.1
|
45%
|
0.45
|
90%
|
0.90
|
90%
|
0.90
|
70%
|
0.79
|
80%
|
0.80
|
60%
|
0.60
|
60%
|
0.60
|
54%
|
0.54
|
65%
|
0.65
|
45%
|
0.45
|
55%
|
0.55
|
87%
|
0.87
|
34%
|
0.34
|
23%
|
0.23
|
12%
|
0.12
|
54%
|
0.54
|
5%
|
0.5
|
29%
|
0.29
|
1%
|
0.1
|
12%
|
0.12
|
4%
|
0.4
|
56%
|
0.56
|
2%
|
0.2
|
23%
|
0.23
|
0.5%
|
00.5
|
78%
|
0.78
|
98%
|
0.98
|
56%
|
0.56
|
99.5%
|
0.995
|
123%
|
1.23
|
120%
|
1.20
|
134%
|
1.34
|
150%
|
1.50
|
165%
|
1.65
|
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