33.2% is the change from 509 to 678
Calculation steps:
[( 678 - 509 ) ÷ 509] x 100 = 33.2%
Formula
Percentage change = [(678 - 509) / 509] x 100
Subtract the new number by the original number
678 - 509 = 169
169 ÷ 509 = 0.3320235756385069
0.3320235756385069 x 100 = 33.2%