-46.6% is the change from 940 to 502
Calculation steps:
[( 502 - 940 ) ÷ 940] x 100 = -46.6%
Formula
Percentage change = [(502 - 940) / 940] x 100
Subtract the new number by the original number
502 - 940 = -438
-438 ÷ 940 = -0.46595744680851064
-0.46595744680851064 x 100 = -46.6%