17.66% is the change from 821 to 966
Calculation steps:
[( 966 - 821 ) ÷ 821] x 100 = 17.66%
Formula
Percentage change = [(966 - 821) / 821] x 100
Subtract the new number by the original number
966 - 821 = 145
145 ÷ 821 = 0.17661388550548113
0.17661388550548113 x 100 = 17.66%