-95.28% is the change from 848 to 40
Calculation steps:
[( 40 - 848 ) ÷ 848] x 100 = -95.28%
Formula
Percentage change = [(40 - 848) / 848] x 100
Subtract the new number by the original number
40 - 848 = -808
-808 ÷ 848 = -0.9528301886792453
-0.9528301886792453 x 100 = -95.28%