-29.09% is the change from 660 to 468
Calculation steps:
[( 468 - 660 ) ÷ 660] x 100 = -29.09%
Formula
Percentage change = [(468 - 660) / 660] x 100
Subtract the new number by the original number
468 - 660 = -192
-192 ÷ 660 = -0.2909090909090909
-0.2909090909090909 x 100 = -29.09%