-29.15% is the change from 710 to 503
Calculation steps:
[( 503 - 710 ) ÷ 710] x 100 = -29.15%
Formula
Percentage change = [(503 - 710) / 710] x 100
Subtract the new number by the original number
503 - 710 = -207
-207 ÷ 710 = -0.2915492957746479
-0.2915492957746479 x 100 = -29.15%