21.43% is the change from 350 to 425
Calculation steps:
[( 425 - 350 ) ÷ 350] x 100 = 21.43%
Formula
Percentage change = [(425 - 350) / 350] x 100
Subtract the new number by the original number
425 - 350 = 75
75 ÷ 350 = 0.21428571428571427
0.21428571428571427 x 100 = 21.43%