-97.87% is the change from 940 to 20
Calculation steps:
[( 20 - 940 ) ÷ 940] x 100 = -97.87%
Formula
Percentage change = [(20 - 940) / 940] x 100
Subtract the new number by the original number
20 - 940 = -920
-920 ÷ 940 = -0.9787234042553191
-0.9787234042553191 x 100 = -97.87%