-26.2% is the change from 664 to 490
Calculation steps:
[( 490 - 664 ) ÷ 664] x 100 = -26.2%
Formula
Percentage change = [(490 - 664) / 664] x 100
Subtract the new number by the original number
490 - 664 = -174
-174 ÷ 664 = -0.2620481927710843
-0.2620481927710843 x 100 = -26.2%