-87.29% is the change from 999 to 127
Calculation steps:
[( 127 - 999 ) ÷ 999] x 100 = -87.29%
Formula
Percentage change = [(127 - 999) / 999] x 100
Subtract the new number by the original number
127 - 999 = -872
-872 ÷ 999 = -0.8728728728728729
-0.8728728728728729 x 100 = -87.29%