-45.91% is the change from 930 to 503
Calculation steps:
[( 503 - 930 ) ÷ 930] x 100 = -45.91%
Formula
Percentage change = [(503 - 930) / 930] x 100
Subtract the new number by the original number
503 - 930 = -427
-427 ÷ 930 = -0.4591397849462366
-0.4591397849462366 x 100 = -45.91%