346.9% is the change from 145 to 648
Calculation steps:
[( 648 - 145 ) ÷ 145] x 100 = 346.9%
Formula
Percentage change = [(648 - 145) / 145] x 100
Subtract the new number by the original number
648 - 145 = 503
503 ÷ 145 = 3.4689655172413794
3.4689655172413794 x 100 = 346.9%