-33.22% is the change from 599 to 400
Calculation steps:
[( 400 - 599 ) ÷ 599] x 100 = -33.22%
Formula
Percentage change = [(400 - 599) / 599] x 100
Subtract the new number by the original number
400 - 599 = -199
-199 ÷ 599 = -0.332220367278798
-0.332220367278798 x 100 = -33.22%