-27% is the change from 689 to 503
Calculation steps:
[( 503 - 689 ) ÷ 689] x 100 = -27%
Formula
Percentage change = [(503 - 689) / 689] x 100
Subtract the new number by the original number
503 - 689 = -186
-186 ÷ 689 = -0.26995645863570394
-0.26995645863570394 x 100 = -27%