76.7% is the change from 455 to 804
Calculation steps:
[( 804 - 455 ) ÷ 455] x 100 = 76.7%
Formula
Percentage change = [(804 - 455) / 455] x 100
Subtract the new number by the original number
804 - 455 = 349
349 ÷ 455 = 0.7670329670329671
0.7670329670329671 x 100 = 76.7%