3.98% is the change from 778 to 809
Calculation steps:
[( 809 - 778 ) ÷ 778] x 100 = 3.98%
Formula
Percentage change = [(809 - 778) / 778] x 100
Subtract the new number by the original number
809 - 778 = 31
31 ÷ 778 = 0.03984575835475578
0.03984575835475578 x 100 = 3.98%