-29.22% is the change from 503 to 356
Calculation steps:
[( 356 - 503 ) ÷ 503] x 100 = -29.22%
Formula
Percentage change = [(356 - 503) / 503] x 100
Subtract the new number by the original number
356 - 503 = -147
-147 ÷ 503 = -0.2922465208747515
-0.2922465208747515 x 100 = -29.22%