Percentage Calculator for Melbourne Residents — 2025
Whether you're in central Melbourne or the surrounding Greater Melbourne area, this tool uses Australian-standard data that applies across the country. Below is Melbourne-specific context to help you get the most accurate results for your local situation.
About Melbourne, Victoria
Melbourne is located in Victoria and is part of the Greater Melbourne area, with a population of approximately 5.2M. The local economy is supported by diverse industry, professional services and retail. The local property market has a median house price of approximately $850,000, with weekly rents averaging $530 for houses.
Cost of Living Context for Melbourne
Melbourne combines world-class liveability with relatively high housing and transport costs.
Local Resources for Melbourne Residents
- Melbourne area council websites for local rates and services
- Victoria government services at vic.gov.au
- Australian Government services at australia.gov.au
- ATO for tax and super information at ato.gov.au
Frequently Asked Questions
How do I calculate a 20% discount?
Multiply the original price by 0.80 (the remaining 80% after the discount). $250 × 0.80 = $200 discounted price. Alternatively, find the discount amount: $250 × 0.20 = $50 off. Both methods reach the same result.
How do I calculate percentage change?
Formula: ((New Value − Old Value) ÷ Old Value) × 100. If revenue went from $80,000 to $100,000: ((100,000−80,000)÷80,000)×100 = 25% increase. If it went from $100,000 to $80,000: ((80,000−100,000)÷100,000)×100 = -20% (a 20% decline).
How do I find the original price before a discount?
Divide the discounted price by (1 − discount as decimal). For a 20% discount: divide by 0.80. If the sale price after 20% off is $200: $200 ÷ 0.80 = $250 original price. For removing 10% GST: divide by 1.10.
What percentage markup gives what profit margin?
These are different calculations. A 25% markup (profit ÷ cost = 25%) gives only a 20% margin (profit ÷ revenue = 20%). A 40% markup gives a 28.6% margin. To get a 25% margin, you need a 33.3% markup. Many Australian business owners confuse these, which leads to underpricing.