79.63% is the change from 216 to 388
Calculation steps:
[( 388 - 216 ) ÷ 216] x 100 = 79.63%
Formula
Percentage change = [(388 - 216) / 216] x 100
Subtract the new number by the original number
388 - 216 = 172
172 ÷ 216 = 0.7962962962962963
0.7962962962962963 x 100 = 79.63%