If you multiply 810 by 1.3 (130% in decimal form) then you get the increase, and with that number, you can add it to 810 to get your final answer: 810x1.3=1053 810+1053=1863
130 to 810 is 523.076 because 130<span> is the old value and </span>810<span> is the new value. In this case we have a % of increase because the new value is greater than the old value.</span>
If you want to find out what that number is, then let's call it n n + 3n (Three times the number) + 12 = 32 Simplify 4n + 12 = 32 Subtract 12 from each side 4n = 20 Divide each side by 4 n = 5
