3043.75% is the change from 16 to 503
Calculation steps:
[( 503 - 16 ) ÷ 16] x 100 = 3043.75%
Formula
Percentage change = [(503 - 16) / 16] x 100
Subtract the new number by the original number
503 - 16 = 487
487 ÷ 16 = 30.4375
30.4375 x 100 = 3043.75%