81.52% is the change from 422 to 766
Calculation steps:
[( 766 - 422 ) ÷ 422] x 100 = 81.52%
Formula
Percentage change = [(766 - 422) / 422] x 100
Subtract the new number by the original number
766 - 422 = 344
344 ÷ 422 = 0.8151658767772512
0.8151658767772512 x 100 = 81.52%