21.45% is the change from 345 to 419
Calculation steps:
[( 419 - 345 ) ÷ 345] x 100 = 21.45%
Formula
Percentage change = [(419 - 345) / 345] x 100
Subtract the new number by the original number
419 - 345 = 74
74 ÷ 345 = 0.2144927536231884
0.2144927536231884 x 100 = 21.45%