-86.11% is the change from 929 to 129
Calculation steps:
[( 129 - 929 ) ÷ 929] x 100 = -86.11%
Formula
Percentage change = [(129 - 929) / 929] x 100
Subtract the new number by the original number
129 - 929 = -800
-800 ÷ 929 = -0.8611410118406889
-0.8611410118406889 x 100 = -86.11%