-15.34% is the change from 919 to 778
Calculation steps:
[( 778 - 919 ) ÷ 919] x 100 = -15.34%
Formula
Percentage change = [(778 - 919) / 919] x 100
Subtract the new number by the original number
778 - 919 = -141
-141 ÷ 919 = -0.15342763873775844
-0.15342763873775844 x 100 = -15.34%