15.36% is the change from 866 to 999
Calculation steps:
[( 999 - 866 ) ÷ 866] x 100 = 15.36%
Formula
Percentage change = [(999 - 866) / 866] x 100
Subtract the new number by the original number
999 - 866 = 133
133 ÷ 866 = 0.1535796766743649
0.1535796766743649 x 100 = 15.36%