-62.17% is the change from 674 to 255
Calculation steps:
[( 255 - 674 ) ÷ 674] x 100 = -62.17%
Formula
Percentage change = [(255 - 674) / 674] x 100
Subtract the new number by the original number
255 - 674 = -419
-419 ÷ 674 = -0.6216617210682492
-0.6216617210682492 x 100 = -62.17%