-67.83% is the change from 799 to 257
Calculation steps:
[( 257 - 799 ) ÷ 799] x 100 = -67.83%
Formula
Percentage change = [(257 - 799) / 799] x 100
Subtract the new number by the original number
257 - 799 = -542
-542 ÷ 799 = -0.6783479349186483
-0.6783479349186483 x 100 = -67.83%