913.1% is the change from 84 to 851
Calculation steps:
[( 851 - 84 ) ÷ 84] x 100 = 913.1%
Formula
Percentage change = [(851 - 84) / 84] x 100
Subtract the new number by the original number
851 - 84 = 767
767 ÷ 84 = 9.130952380952381
9.130952380952381 x 100 = 913.1%