-52.1% is the change from 808 to 387
Calculation steps:
[( 387 - 808 ) ÷ 808] x 100 = -52.1%
Formula
Percentage change = [(387 - 808) / 808] x 100
Subtract the new number by the original number
387 - 808 = -421
-421 ÷ 808 = -0.5210396039603961
-0.5210396039603961 x 100 = -52.1%