52.12% is the change from 424 to 645
Calculation steps:
[( 645 - 424 ) ÷ 424] x 100 = 52.12%
Formula
Percentage change = [(645 - 424) / 424] x 100
Subtract the new number by the original number
645 - 424 = 221
221 ÷ 424 = 0.5212264150943396
0.5212264150943396 x 100 = 52.12%