-56.03% is the change from 605 to 266
Calculation steps:
[( 266 - 605 ) ÷ 605] x 100 = -56.03%
Formula
Percentage change = [(266 - 605) / 605] x 100
Subtract the new number by the original number
266 - 605 = -339
-339 ÷ 605 = -0.5603305785123966
-0.5603305785123966 x 100 = -56.03%