65.12% is the change from 215 to 355
Calculation steps:
[( 355 - 215 ) ÷ 215] x 100 = 65.12%
Formula
Percentage change = [(355 - 215) / 215] x 100
Subtract the new number by the original number
355 - 215 = 140
140 ÷ 215 = 0.6511627906976745
0.6511627906976745 x 100 = 65.12%