-52.88% is the change from 800 to 377
Calculation steps:
[( 377 - 800 ) ÷ 800] x 100 = -52.88%
Formula
Percentage change = [(377 - 800) / 800] x 100
Subtract the new number by the original number
377 - 800 = -423
-423 ÷ 800 = -0.52875
-0.52875 x 100 = -52.88%