69.84% is the change from 451 to 766
Calculation steps:
[( 766 - 451 ) ÷ 451] x 100 = 69.84%
Formula
Percentage change = [(766 - 451) / 451] x 100
Subtract the new number by the original number
766 - 451 = 315
315 ÷ 451 = 0.6984478935698448
0.6984478935698448 x 100 = 69.84%