-45.3% is the change from 596 to 326
Calculation steps:
[( 326 - 596 ) ÷ 596] x 100 = -45.3%
Formula
Percentage change = [(326 - 596) / 596] x 100
Subtract the new number by the original number
326 - 596 = -270
-270 ÷ 596 = -0.45302013422818793
-0.45302013422818793 x 100 = -45.3%