-5.33% is the change from 919 to 870
Calculation steps:
[( 870 - 919 ) ÷ 919] x 100 = -5.33%
Formula
Percentage change = [(870 - 919) / 919] x 100
Subtract the new number by the original number
870 - 919 = -49
-49 ÷ 919 = -0.05331882480957562
-0.05331882480957562 x 100 = -5.33%