690.24% is the change from 82 to 648
Calculation steps:
[( 648 - 82 ) ÷ 82] x 100 = 690.24%
Formula
Percentage change = [(648 - 82) / 82] x 100
Subtract the new number by the original number
648 - 82 = 566
566 ÷ 82 = 6.902439024390244
6.902439024390244 x 100 = 690.24%