The Dollar Gain is rounded to the nearest cent and the Percentage Gain is rounded up to two decimals. The difference between the quantities is computed which is divided by the original quantity. In order to calculate how much it went up we simply use the following formula.
Add any dividends paid to the value of the stock at the end of the period to figure the actual closing value.
An increase of 5 percent would indicate that if you split the original value into 100 parts that value has increases by an additional 5 parts. A calculator to quickly and easily determine the profit or loss from a sale on shares of stock. When calculating percent increase the smaller number is the original or old value and the bigger number is the new or final value. Subtract the original value from the new value.