43.52% is the change from 216 to 310
Calculation steps:
[( 310 - 216 ) ÷ 216] x 100 = 43.52%
Formula
Percentage change = [(310 - 216) / 216] x 100
Subtract the new number by the original number
310 - 216 = 94
94 ÷ 216 = 0.4351851851851852
0.4351851851851852 x 100 = 43.52%