690.91% is the change from 66 to 522
Calculation steps:
[( 522 - 66 ) ÷ 66] x 100 = 690.91%
Formula
Percentage change = [(522 - 66) / 66] x 100
Subtract the new number by the original number
522 - 66 = 456
456 ÷ 66 = 6.909090909090909
6.909090909090909 x 100 = 690.91%