7100% is the change from 3 to 216
Calculation steps:
[( 216 - 3 ) ÷ 3] x 100 = 7100%
Formula
Percentage change = [(216 - 3) / 3] x 100
Subtract the new number by the original number
216 - 3 = 213
213 ÷ 3 = 71
71 x 100 = 7100%
Example