725.76% is the change from 66 to 545
Calculation steps:
[( 545 - 66 ) ÷ 66] x 100 = 725.76%
Formula
Percentage change = [(545 - 66) / 66] x 100
Subtract the new number by the original number
545 - 66 = 479
479 ÷ 66 = 7.257575757575758
7.257575757575758 x 100 = 725.76%