-82.43% is the change from 814 to 143
Calculation steps:
[( 143 - 814 ) ÷ 814] x 100 = -82.43%
Formula
Percentage change = [(143 - 814) / 814] x 100
Subtract the new number by the original number
143 - 814 = -671
-671 ÷ 814 = -0.8243243243243243
-0.8243243243243243 x 100 = -82.43%