-59.13% is the change from 668 to 273
Calculation steps:
[( 273 - 668 ) ÷ 668] x 100 = -59.13%
Formula
Percentage change = [(273 - 668) / 668] x 100
Subtract the new number by the original number
273 - 668 = -395
-395 ÷ 668 = -0.5913173652694611
-0.5913173652694611 x 100 = -59.13%