72.31% is the change from 455 to 784
Calculation steps:
[( 784 - 455 ) ÷ 455] x 100 = 72.31%
Formula
Percentage change = [(784 - 455) / 455] x 100
Subtract the new number by the original number
784 - 455 = 329
329 ÷ 455 = 0.7230769230769231
0.7230769230769231 x 100 = 72.31%