169.31% is the change from 303 to 816
Calculation steps:
[( 816 - 303 ) ÷ 303] x 100 = 169.31%
Formula
Percentage change = [(816 - 303) / 303] x 100
Subtract the new number by the original number
816 - 303 = 513
513 ÷ 303 = 1.693069306930693
1.693069306930693 x 100 = 169.31%