-46.08% is the change from 931 to 502
Calculation steps:
[( 502 - 931 ) ÷ 931] x 100 = -46.08%
Formula
Percentage change = [(502 - 931) / 931] x 100
Subtract the new number by the original number
502 - 931 = -429
-429 ÷ 931 = -0.4607948442534909
-0.4607948442534909 x 100 = -46.08%