768.92% is the change from 74 to 643
Calculation steps:
[( 643 - 74 ) ÷ 74] x 100 = 768.92%
Formula
Percentage change = [(643 - 74) / 74] x 100
Subtract the new number by the original number
643 - 74 = 569
569 ÷ 74 = 7.6891891891891895
7.6891891891891895 x 100 = 768.92%