#roi-calculator-wrapper {
font-family: sans-serif;
border: 1px solid #ccc;
padding: 20px;
border-radius: 8px;
max-width: 600px;
margin: 20px auto;
background-color: #f9f9f9;
}
#roi-calculator-wrapper h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.roi-input-group {
margin-bottom: 15px;
display: flex;
align-items: center;
justify-content: space-between;
}
.roi-input-group label {
display: inline-block;
width: 150px;
margin-right: 10px;
font-weight: bold;
color: #555;
}
.roi-input-group input[type="number"],
.roi-input-group input[type="text"] {
padding: 8px;
border: 1px solid #ddd;
border-radius: 4px;
width: 120px;
box-sizing: border-box;
}
.roi-input-group input[type="number"]::-webkit-outer-spin-button,
.roi-input-group input[type="number"]::-webkit-inner-spin-button {
-webkit-appearance: none;
margin: 0;
}
.roi-input-group input[type="number"] {
-moz-appearance: textfield;
}
#roi-calculate-btn {
display: block;
width: 100%;
padding: 10px;
background-color: #4CAF50;
color: white;
border: none;
border-radius: 5px;
font-size: 16px;
cursor: pointer;
margin-top: 20px;
transition: background-color 0.3s ease;
}
#roi-calculate-btn:hover {
background-color: #45a049;
}
#roi-result {
margin-top: 25px;
padding: 15px;
border: 1px dashed #4CAF50;
border-radius: 5px;
background-color: #e8f5e9;
text-align: center;
font-size: 1.1em;
font-weight: bold;
color: #333;
}
#roi-result span {
color: #4CAF50;
}
.roi-explanation {
margin-top: 30px;
padding-top: 20px;
border-top: 1px solid #eee;
color: #666;
line-height: 1.6;
}
.roi-explanation h3 {
color: #444;
margin-bottom: 10px;
}
What is Return on Investment (ROI)?
Return on Investment (ROI) is a performance measure used to evaluate the efficiency or profitability of an investment or compare the efficiency of a number of different investments. ROI measures the amount of return on a particular investment, relative to the investment's cost. To calculate ROI, the benefit (or return) of an investment is divided by the cost of the investment.
The formula for ROI is:
ROI = [(Current Value of Investment – Initial Investment – Additional Investment + Total Withdrawal) / (Initial Investment + Additional Investment)] * 100%
A positive ROI indicates that the investment generated profit, while a negative ROI signifies a loss. It's a crucial metric for assessing the success of any venture, from personal savings to large corporate projects.
Example: If you invested $10,000 initially, added $2,000 later, and your investment is now worth $15,000, but you've withdrawn $1,000, your total cost is $12,000. The net profit is $15,000 (current value) – $1,000 (withdrawal) – $12,000 (total cost) = $2,000. Your ROI would be ($2,000 / $12,000) * 100% = 16.67%.