666.27% is the change from 83 to 636
Calculation steps:
[( 636 - 83 ) ÷ 83] x 100 = 666.27%
Formula
Percentage change = [(636 - 83) / 83] x 100
Subtract the new number by the original number
636 - 83 = 553
553 ÷ 83 = 6.662650602409639
6.662650602409639 x 100 = 666.27%