86.51% is the change from 215 to 401
Calculation steps:
[( 401 - 215 ) ÷ 215] x 100 = 86.51%
Formula
Percentage change = [(401 - 215) / 215] x 100
Subtract the new number by the original number
401 - 215 = 186
186 ÷ 215 = 0.8651162790697674
0.8651162790697674 x 100 = 86.51%