-68.05% is the change from 798 to 255
Calculation steps:
[( 255 - 798 ) ÷ 798] x 100 = -68.05%
Formula
Percentage change = [(255 - 798) / 798] x 100
Subtract the new number by the original number
255 - 798 = -543
-543 ÷ 798 = -0.6804511278195489
-0.6804511278195489 x 100 = -68.05%