# How to date bronze? ### How to date bronze?

THE DATING OF BRONZES To date, there are no reliable and economical processes that can be used to date metal alloys, a few decades old. Bronzes, alloys of copper and tin, for the most part, also contain many other metals or metalloids.

### How to tell the difference between bronze and brass?

When it oxidizes on contact with humidity the brass takes on a green color called “verdigris”. It is a less hard and heavy alloy than the bronze, and much less noble. It scratches more easily than bronze and needs to be polished regularly to keep its shine. A real bronze will be more resistant.

### What is the difference between point and percentage?

Percentage is the hundredth part of a whole while percentage point is a unit of account that expresses the change in percentage.

### How to calculate a percentage?

The percentage is the way of expressing a proportion, the relationship between a part and a whole. We compare this proportion to a base of 100. In other words, a percentage is a fraction with 100 as the denominator. Percentages are written with the symbol %. How to calculate a decrease, a reduction, a promotion?

### What is percentage?

The percentage is the way of expressing a proportion, the relationship between a part and a whole. We compare this proportion to a base of 100. In other words, a percentage is a fraction with 100 as the denominator. Percentages are written with the symbol %.

### How to calculate the percentage of German citizens in the European elections of 2014?

The result shows that 47.9% of German citizens took part in the 2014 European elections. Our calculator uses the following formula: partial value / total value = percentage, i.e. 30.85 / 64.4 = 0.479, which corresponds to 47 .9%.