How do you calculate percentage change

hope this helps :)

Calculating Percentage Change Step-by-Step  

To calculate a percentage increase, first work out the difference (increase) between the two numbers you are comparing:  

Increase = New Number - Original Number  

Next, divide the increase by the original number and multiply the answer by 100:  

% increase = Increase ÷ Original Number × 100.  

If the answer is a negative number, that means the percentage change is a decrease.

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v