-85.66% is the change from 997 to 143
Calculation steps:
[( 143 - 997 ) ÷ 997] x 100 = -85.66%
Formula
Percentage change = [(143 - 997) / 997] x 100
Subtract the new number by the original number
143 - 997 = -854
-854 ÷ 997 = -0.8565697091273822
-0.8565697091273822 x 100 = -85.66%