134.2% is the change from 345 to 808
Calculation steps:
[( 808 - 345 ) ÷ 345] x 100 = 134.2%
Formula
Percentage change = [(808 - 345) / 345] x 100
Subtract the new number by the original number
808 - 345 = 463
463 ÷ 345 = 1.3420289855072465
1.3420289855072465 x 100 = 134.2%