-97.89% is the change from 900 to 19
Calculation steps:
[( 19 - 900 ) ÷ 900] x 100 = -97.89%
Formula
Percentage change = [(19 - 900) / 900] x 100
Subtract the new number by the original number
19 - 900 = -881
-881 ÷ 900 = -0.9788888888888889
-0.9788888888888889 x 100 = -97.89%