-23.86% is the change from 591 to 450
Calculation steps:
[( 450 - 591 ) ÷ 591] x 100 = -23.86%
Formula
Percentage change = [(450 - 591) / 591] x 100
Subtract the new number by the original number
450 - 591 = -141
-141 ÷ 591 = -0.23857868020304568
-0.23857868020304568 x 100 = -23.86%