21.48% is the change from 717 to 871
Calculation steps:
[( 871 - 717 ) ÷ 717] x 100 = 21.48%
Formula
Percentage change = [(871 - 717) / 717] x 100
Subtract the new number by the original number
871 - 717 = 154
154 ÷ 717 = 0.21478382147838215
0.21478382147838215 x 100 = 21.48%