79.35% is the change from 557 to 999
Calculation steps:
[( 999 - 557 ) ÷ 557] x 100 = 79.35%
Formula
Percentage change = [(999 - 557) / 557] x 100
Subtract the new number by the original number
999 - 557 = 442
442 ÷ 557 = 0.7935368043087971
0.7935368043087971 x 100 = 79.35%