647.3% is the change from 74 to 553
Calculation steps:
[( 553 - 74 ) ÷ 74] x 100 = 647.3%
Formula
Percentage change = [(553 - 74) / 74] x 100
Subtract the new number by the original number
553 - 74 = 479
479 ÷ 74 = 6.472972972972973
6.472972972972973 x 100 = 647.3%