-54.14% is the change from 399 to 183
Calculation steps:
[( 183 - 399 ) ÷ 399] x 100 = -54.14%
Formula
Percentage change = [(183 - 399) / 399] x 100
Subtract the new number by the original number
183 - 399 = -216
-216 ÷ 399 = -0.5413533834586466
-0.5413533834586466 x 100 = -54.14%