-16.1% is the change from 919 to 771
Calculation steps:
[( 771 - 919 ) ÷ 919] x 100 = -16.1%
Formula
Percentage change = [(771 - 919) / 919] x 100
Subtract the new number by the original number
771 - 919 = -148
-148 ÷ 919 = -0.16104461371055495
-0.16104461371055495 x 100 = -16.1%