2612.5% is the change from 8 to 217
Calculation steps:
[( 217 - 8 ) ÷ 8] x 100 = 2612.5%
Formula
Percentage change = [(217 - 8) / 8] x 100
Subtract the new number by the original number
217 - 8 = 209
209 ÷ 8 = 26.125
26.125 x 100 = 2612.5%
Example