-86.07% is the change from 919 to 128
Calculation steps:
[( 128 - 919 ) ÷ 919] x 100 = -86.07%
Formula
Percentage change = [(128 - 919) / 919] x 100
Subtract the new number by the original number
128 - 919 = -791
-791 ÷ 919 = -0.8607181719260065
-0.8607181719260065 x 100 = -86.07%