-45.97% is the change from 931 to 503
Calculation steps:
[( 503 - 931 ) ÷ 931] x 100 = -45.97%
Formula
Percentage change = [(503 - 931) / 931] x 100
Subtract the new number by the original number
503 - 931 = -428
-428 ÷ 931 = -0.4597207303974221
-0.4597207303974221 x 100 = -45.97%