18.85% is the change from 817 to 971
Calculation steps:
[( 971 - 817 ) ÷ 817] x 100 = 18.85%
Formula
Percentage change = [(971 - 817) / 817] x 100
Subtract the new number by the original number
971 - 817 = 154
154 ÷ 817 = 0.18849449204406366
0.18849449204406366 x 100 = 18.85%