-18.97% is the change from 991 to 803
Calculation steps:
[( 803 - 991 ) ÷ 991] x 100 = -18.97%
Formula
Percentage change = [(803 - 991) / 991] x 100
Subtract the new number by the original number
803 - 991 = -188
-188 ÷ 991 = -0.18970736629667004
-0.18970736629667004 x 100 = -18.97%