2.83% is the change from 778 to 800
Calculation steps:
[( 800 - 778 ) ÷ 778] x 100 = 2.83%
Formula
Percentage change = [(800 - 778) / 778] x 100
Subtract the new number by the original number
800 - 778 = 22
22 ÷ 778 = 0.028277634961439587
0.028277634961439587 x 100 = 2.83%