214.48% is the change from 145 to 456
Calculation steps:
[( 456 - 145 ) ÷ 145] x 100 = 214.48%
Formula
Percentage change = [(456 - 145) / 145] x 100
Subtract the new number by the original number
456 - 145 = 311
311 ÷ 145 = 2.1448275862068966
2.1448275862068966 x 100 = 214.48%