80.52% is the change from 503 to 908
Calculation steps:
[( 908 - 503 ) ÷ 503] x 100 = 80.52%
Formula
Percentage change = [(908 - 503) / 503] x 100
Subtract the new number by the original number
908 - 503 = 405
405 ÷ 503 = 0.805168986083499
0.805168986083499 x 100 = 80.52%