675% is the change from 84 to 651
Calculation steps:
[( 651 - 84 ) ÷ 84] x 100 = 675%
Formula
Percentage change = [(651 - 84) / 84] x 100
Subtract the new number by the original number
651 - 84 = 567
567 ÷ 84 = 6.75
6.75 x 100 = 675%
Example