-80.41% is the change from 919 to 180
Calculation steps:
[( 180 - 919 ) ÷ 919] x 100 = -80.41%
Formula
Percentage change = [(180 - 919) / 919] x 100
Subtract the new number by the original number
180 - 919 = -739
-739 ÷ 919 = -0.8041349292709467
-0.8041349292709467 x 100 = -80.41%