Need ! find the percent of increase from 260 to 430. round to the nearest tenth of a percent if necessary.

a) 0.7%
b) 39.5%
c)60.5%
d)65.4%

You started out with 260, and increased to 430.
The amount you increased was (430 - 260) = 170

170 is  (170/260) = 65.4% of what you started with.



Another way:

The new amount is  (430/260) of the old amount.

 430 / 260 = 1.654 = 165.4%

The original amount was  260.
You started with  100%  of it.
You ended up with  165.4%  of it.
That's an increase of  65.4% .