-88.9% is the change from 919 to 102
Calculation steps:
[( 102 - 919 ) ÷ 919] x 100 = -88.9%
Formula
Percentage change = [(102 - 919) / 919] x 100
Subtract the new number by the original number
102 - 919 = -817
-817 ÷ 919 = -0.8890097932535365
-0.8890097932535365 x 100 = -88.9%