0.1% is the change from 991 to 992
Calculation steps:
[( 992 - 991 ) ÷ 991] x 100 = 0.1%
Formula
Percentage change = [(992 - 991) / 991] x 100
Subtract the new number by the original number
992 - 991 = 1
1 ÷ 991 = 0.0010090817356205853
0.0010090817356205853 x 100 = 0.1%