99400% is the change from 1 to 995
Calculation steps:
[( 995 - 1 ) ÷ 1] x 100 = 99400%
Formula
Percentage change = [(995 - 1) / 1] x 100
Subtract the new number by the original number
995 - 1 = 994
994 ÷ 1 = 994
994 x 100 = 99400%
Example