61.21% is the change from 214 to 345
Calculation steps:
[( 345 - 214 ) ÷ 214] x 100 = 61.21%
Formula
Percentage change = [(345 - 214) / 214] x 100
Subtract the new number by the original number
345 - 214 = 131
131 ÷ 214 = 0.6121495327102804
0.6121495327102804 x 100 = 61.21%