827.16% is the change from 81 to 751
Calculation steps:
[( 751 - 81 ) ÷ 81] x 100 = 827.16%
Formula
Percentage change = [(751 - 81) / 81] x 100
Subtract the new number by the original number
751 - 81 = 670
670 ÷ 81 = 8.271604938271604
8.271604938271604 x 100 = 827.16%