649.4% is the change from 83 to 622
Calculation steps:
[( 622 - 83 ) ÷ 83] x 100 = 649.4%
Formula
Percentage change = [(622 - 83) / 83] x 100
Subtract the new number by the original number
622 - 83 = 539
539 ÷ 83 = 6.493975903614458
6.493975903614458 x 100 = 649.4%