-61.07% is the change from 655 to 255
Calculation steps:
[( 255 - 655 ) ÷ 655] x 100 = -61.07%
Formula
Percentage change = [(255 - 655) / 655] x 100
Subtract the new number by the original number
255 - 655 = -400
-400 ÷ 655 = -0.6106870229007634
-0.6106870229007634 x 100 = -61.07%