-28.85% is the change from 707 to 503
Calculation steps:
[( 503 - 707 ) ÷ 707] x 100 = -28.85%
Formula
Percentage change = [(503 - 707) / 707] x 100
Subtract the new number by the original number
503 - 707 = -204
-204 ÷ 707 = -0.28854314002828857
-0.28854314002828857 x 100 = -28.85%