-97.96% is the change from 930 to 19
Calculation steps:
[( 19 - 930 ) ÷ 930] x 100 = -97.96%
Formula
Percentage change = [(19 - 930) / 930] x 100
Subtract the new number by the original number
19 - 930 = -911
-911 ÷ 930 = -0.9795698924731183
-0.9795698924731183 x 100 = -97.96%