-97.93% is the change from 919 to 19
Calculation steps:
[( 19 - 919 ) ÷ 919] x 100 = -97.93%
Formula
Percentage change = [(19 - 919) / 919] x 100
Subtract the new number by the original number
19 - 919 = -900
-900 ÷ 919 = -0.9793253536452666
-0.9793253536452666 x 100 = -97.93%