-56.13% is the change from 800 to 351
Calculation steps:
[( 351 - 800 ) ÷ 800] x 100 = -56.13%
Formula
Percentage change = [(351 - 800) / 800] x 100
Subtract the new number by the original number
351 - 800 = -449
-449 ÷ 800 = -0.56125
-0.56125 x 100 = -56.13%