653.42% is the change from 73 to 550
Calculation steps:
[( 550 - 73 ) ÷ 73] x 100 = 653.42%
Formula
Percentage change = [(550 - 73) / 73] x 100
Subtract the new number by the original number
550 - 73 = 477
477 ÷ 73 = 6.534246575342466
6.534246575342466 x 100 = 653.42%