-92.49% is the change from 999 to 75
Calculation steps:
[( 75 - 999 ) ÷ 999] x 100 = -92.49%
Formula
Percentage change = [(75 - 999) / 999] x 100
Subtract the new number by the original number
75 - 999 = -924
-924 ÷ 999 = -0.924924924924925
-0.924924924924925 x 100 = -92.49%