-68.01% is the change from 797 to 255
Calculation steps:
[( 255 - 797 ) ÷ 797] x 100 = -68.01%
Formula
Percentage change = [(255 - 797) / 797] x 100
Subtract the new number by the original number
255 - 797 = -542
-542 ÷ 797 = -0.6800501882057717
-0.6800501882057717 x 100 = -68.01%