-52.88% is the change from 399 to 188
Calculation steps:
[( 188 - 399 ) ÷ 399] x 100 = -52.88%
Formula
Percentage change = [(188 - 399) / 399] x 100
Subtract the new number by the original number
188 - 399 = -211
-211 ÷ 399 = -0.5288220551378446
-0.5288220551378446 x 100 = -52.88%