-92.31% is the change from 247 to 19
Calculation steps:
[( 19 - 247 ) ÷ 247] x 100 = -92.31%
Formula
Percentage change = [(19 - 247) / 247] x 100
Subtract the new number by the original number
19 - 247 = -228
-228 ÷ 247 = -0.9230769230769231
-0.9230769230769231 x 100 = -92.31%