660.24% is the change from 83 to 631
Calculation steps:
[( 631 - 83 ) ÷ 83] x 100 = 660.24%
Formula
Percentage change = [(631 - 83) / 83] x 100
Subtract the new number by the original number
631 - 83 = 548
548 ÷ 83 = 6.602409638554217
6.602409638554217 x 100 = 660.24%