-52.25% is the change from 534 to 255
Calculation steps:
[( 255 - 534 ) ÷ 534] x 100 = -52.25%
Formula
Percentage change = [(255 - 534) / 534] x 100
Subtract the new number by the original number
255 - 534 = -279
-279 ÷ 534 = -0.5224719101123596
-0.5224719101123596 x 100 = -52.25%