-98.34% is the change from 904 to 15
Calculation steps:
[( 15 - 904 ) ÷ 904] x 100 = -98.34%
Formula
Percentage change = [(15 - 904) / 904] x 100
Subtract the new number by the original number
15 - 904 = -889
-889 ÷ 904 = -0.9834070796460177
-0.9834070796460177 x 100 = -98.34%