-82.3% is the change from 808 to 143
Calculation steps:
[( 143 - 808 ) ÷ 808] x 100 = -82.3%
Formula
Percentage change = [(143 - 808) / 808] x 100
Subtract the new number by the original number
143 - 808 = -665
-665 ÷ 808 = -0.823019801980198
-0.823019801980198 x 100 = -82.3%