-64.16% is the change from 399 to 143
Calculation steps:
[( 143 - 399 ) ÷ 399] x 100 = -64.16%
Formula
Percentage change = [(143 - 399) / 399] x 100
Subtract the new number by the original number
143 - 399 = -256
-256 ÷ 399 = -0.6416040100250626
-0.6416040100250626 x 100 = -64.16%