50% is the change from 146 to 219
Calculation steps:
[( 219 - 146 ) ÷ 146] x 100 = 50%
Formula
Percentage change = [(219 - 146) / 146] x 100
Subtract the new number by the original number
219 - 146 = 73
73 ÷ 146 = 0.5
0.5 x 100 = 50%
Example