509.3% is the change from 129 to 786
Calculation steps:
[( 786 - 129 ) ÷ 129] x 100 = 509.3%
Formula
Percentage change = [(786 - 129) / 129] x 100
Subtract the new number by the original number
786 - 129 = 657
657 ÷ 129 = 5.093023255813954
5.093023255813954 x 100 = 509.3%