-54.41% is the change from 851 to 388
Calculation steps:
[( 388 - 851 ) ÷ 851] x 100 = -54.41%
Formula
Percentage change = [(388 - 851) / 851] x 100
Subtract the new number by the original number
388 - 851 = -463
-463 ÷ 851 = -0.5440658049353702
-0.5440658049353702 x 100 = -54.41%