76.48% is the change from 455 to 803
Calculation steps:
[( 803 - 455 ) ÷ 455] x 100 = 76.48%
Formula
Percentage change = [(803 - 455) / 455] x 100
Subtract the new number by the original number
803 - 455 = 348
348 ÷ 455 = 0.7648351648351648
0.7648351648351648 x 100 = 76.48%