-98.59% is the change from 919 to 13
Calculation steps:
[( 13 - 919 ) ÷ 919] x 100 = -98.59%
Formula
Percentage change = [(13 - 919) / 919] x 100
Subtract the new number by the original number
13 - 919 = -906
-906 ÷ 919 = -0.985854189336235
-0.985854189336235 x 100 = -98.59%
Example