65.93% is the change from 455 to 755
Calculation steps:
[( 755 - 455 ) ÷ 455] x 100 = 65.93%
Formula
Percentage change = [(755 - 455) / 455] x 100
Subtract the new number by the original number
755 - 455 = 300
300 ÷ 455 = 0.6593406593406593
0.6593406593406593 x 100 = 65.93%