The percent change for going from value A to value B is given by:
% change = [ ( B - A ) / ( A ) ] [ 100
You then have :
% change = [ ( 624 - 45 ) / ( 45 ) ] [ 100 ] = 1287 % change <------[ Answer ]-----
45% = 45/100 It can also be written as 9/20
70 percent off 624 dollars is 436.8 dollars.
To get the answer, You have to change the percent to a decimal and since the percent is only 2 numbers all you need to do is change the 45 to .45. So here is the equation: 1520 (divided by) .45= 684
18 increased to 45 is a change of +150%
624
187.2
From 60 to 45 is a 25% decrease
45% = 45/100 0.45% = 45/10000
156
6.24
40 percent of 1560 = 624 40% of 1560 = 40% * 1560 = 40%/100% * 1560 = 4 * 156 = 624
50% increase.