-52.34% is the change from 535 to 255
Calculation steps:
[( 255 - 535 ) ÷ 535] x 100 = -52.34%
Formula
Percentage change = [(255 - 535) / 535] x 100
Subtract the new number by the original number
255 - 535 = -280
-280 ÷ 535 = -0.5233644859813084
-0.5233644859813084 x 100 = -52.34%