86.98% is the change from 215 to 402
Calculation steps:
[( 402 - 215 ) ÷ 215] x 100 = 86.98%
Formula
Percentage change = [(402 - 215) / 215] x 100
Subtract the new number by the original number
402 - 215 = 187
187 ÷ 215 = 0.8697674418604651
0.8697674418604651 x 100 = 86.98%