719.7% is the change from 66 to 541
Calculation steps:
[( 541 - 66 ) ÷ 66] x 100 = 719.7%
Formula
Percentage change = [(541 - 66) / 66] x 100
Subtract the new number by the original number
541 - 66 = 475
475 ÷ 66 = 7.196969696969697
7.196969696969697 x 100 = 719.7%