-67.75% is the change from 800 to 258
Calculation steps:
[( 258 - 800 ) ÷ 800] x 100 = -67.75%
Formula
Percentage change = [(258 - 800) / 800] x 100
Subtract the new number by the original number
258 - 800 = -542
-542 ÷ 800 = -0.6775
-0.6775 x 100 = -67.75%