51.65% is the change from 455 to 690
Calculation steps:
[( 690 - 455 ) ÷ 455] x 100 = 51.65%
Formula
Percentage change = [(690 - 455) / 455] x 100
Subtract the new number by the original number
690 - 455 = 235
235 ÷ 455 = 0.5164835164835165
0.5164835164835165 x 100 = 51.65%