68.39% is the change from 503 to 847
Calculation steps:
[( 847 - 503 ) ÷ 503] x 100 = 68.39%
Formula
Percentage change = [(847 - 503) / 503] x 100
Subtract the new number by the original number
847 - 503 = 344
344 ÷ 503 = 0.68389662027833
0.68389662027833 x 100 = 68.39%