-24.59% is the change from 667 to 503
Calculation steps:
[( 503 - 667 ) ÷ 667] x 100 = -24.59%
Formula
Percentage change = [(503 - 667) / 667] x 100
Subtract the new number by the original number
503 - 667 = -164
-164 ÷ 667 = -0.24587706146926536
-0.24587706146926536 x 100 = -24.59%