-6.56% is the change from 503 to 470
Calculation steps:
[( 470 - 503 ) ÷ 503] x 100 = -6.56%
Formula
Percentage change = [(470 - 503) / 503] x 100
Subtract the new number by the original number
470 - 503 = -33
-33 ÷ 503 = -0.06560636182902585
-0.06560636182902585 x 100 = -6.56%