-97.99% is the change from 947 to 19
Calculation steps:
[( 19 - 947 ) ÷ 947] x 100 = -97.99%
Formula
Percentage change = [(19 - 947) / 947] x 100
Subtract the new number by the original number
19 - 947 = -928
-928 ÷ 947 = -0.9799366420274551
-0.9799366420274551 x 100 = -97.99%