-30.54% is the change from 668 to 464
Calculation steps:
[( 464 - 668 ) ÷ 668] x 100 = -30.54%
Formula
Percentage change = [(464 - 668) / 668] x 100
Subtract the new number by the original number
464 - 668 = -204
-204 ÷ 668 = -0.30538922155688625
-0.30538922155688625 x 100 = -30.54%