-84.27% is the change from 909 to 143
Calculation steps:
[( 143 - 909 ) ÷ 909] x 100 = -84.27%
Formula
Percentage change = [(143 - 909) / 909] x 100
Subtract the new number by the original number
143 - 909 = -766
-766 ÷ 909 = -0.8426842684268426
-0.8426842684268426 x 100 = -84.27%