46.26% is the change from 668 to 977
Calculation steps:
[( 977 - 668 ) ÷ 668] x 100 = 46.26%
Formula
Percentage change = [(977 - 668) / 668] x 100
Subtract the new number by the original number
977 - 668 = 309
309 ÷ 668 = 0.4625748502994012
0.4625748502994012 x 100 = 46.26%