729.63% is the change from 81 to 672
Calculation steps:
[( 672 - 81 ) ÷ 81] x 100 = 729.63%
Formula
Percentage change = [(672 - 81) / 81] x 100
Subtract the new number by the original number
672 - 81 = 591
591 ÷ 81 = 7.296296296296297
7.296296296296297 x 100 = 729.63%