-51.38% is the change from 399 to 194
Calculation steps:
[( 194 - 399 ) ÷ 399] x 100 = -51.38%
Formula
Percentage change = [(194 - 399) / 399] x 100
Subtract the new number by the original number
194 - 399 = -205
-205 ÷ 399 = -0.5137844611528822
-0.5137844611528822 x 100 = -51.38%