869.05% is the change from 84 to 814
Calculation steps:
[( 814 - 84 ) ÷ 84] x 100 = 869.05%
Formula
Percentage change = [(814 - 84) / 84] x 100
Subtract the new number by the original number
814 - 84 = 730
730 ÷ 84 = 8.69047619047619
8.69047619047619 x 100 = 869.05%