-12.8% is the change from 930 to 811
Calculation steps:
[( 811 - 930 ) ÷ 930] x 100 = -12.8%
Formula
Percentage change = [(811 - 930) / 930] x 100
Subtract the new number by the original number
811 - 930 = -119
-119 ÷ 930 = -0.12795698924731183
-0.12795698924731183 x 100 = -12.8%