101.21% is the change from 497 to 1000
Calculation steps:
[( 1000 - 497 ) ÷ 497] x 100 = 101.21%
Formula
Percentage change = [(1000 - 497) / 497] x 100
Subtract the new number by the original number
1000 - 497 = 503
503 ÷ 497 = 1.012072434607646
1.012072434607646 x 100 = 101.21%