63.72% is the change from 215 to 352
Calculation steps:
[( 352 - 215 ) ÷ 215] x 100 = 63.72%
Formula
Percentage change = [(352 - 215) / 215] x 100
Subtract the new number by the original number
352 - 215 = 137
137 ÷ 215 = 0.6372093023255814
0.6372093023255814 x 100 = 63.72%