38.09% is the change from 491 to 678
Calculation steps:
[( 678 - 491 ) ÷ 491] x 100 = 38.09%
Formula
Percentage change = [(678 - 491) / 491] x 100
Subtract the new number by the original number
678 - 491 = 187
187 ÷ 491 = 0.38085539714867617
0.38085539714867617 x 100 = 38.09%