42.66% is the change from 668 to 953
Calculation steps:
[( 953 - 668 ) ÷ 668] x 100 = 42.66%
Formula
Percentage change = [(953 - 668) / 668] x 100
Subtract the new number by the original number
953 - 668 = 285
285 ÷ 668 = 0.42664670658682635
0.42664670658682635 x 100 = 42.66%