641.38% is the change from 29 to 215
Calculation steps:
[( 215 - 29 ) ÷ 29] x 100 = 641.38%
Formula
Percentage change = [(215 - 29) / 29] x 100
Subtract the new number by the original number
215 - 29 = 186
186 ÷ 29 = 6.413793103448276
6.413793103448276 x 100 = 641.38%