675.31% is the change from 81 to 628
Calculation steps:
[( 628 - 81 ) ÷ 81] x 100 = 675.31%
Formula
Percentage change = [(628 - 81) / 81] x 100
Subtract the new number by the original number
628 - 81 = 547
547 ÷ 81 = 6.753086419753086
6.753086419753086 x 100 = 675.31%