653.03% is the change from 66 to 497
Calculation steps:
[( 497 - 66 ) ÷ 66] x 100 = 653.03%
Formula
Percentage change = [(497 - 66) / 66] x 100
Subtract the new number by the original number
497 - 66 = 431
431 ÷ 66 = 6.53030303030303
6.53030303030303 x 100 = 653.03%