50% is the change from 624 to 936
Calculation steps:
[( 936 - 624 ) ÷ 624] x 100 = 50%
Formula
Percentage change = [(936 - 624) / 624] x 100
Subtract the new number by the original number
936 - 624 = 312
312 ÷ 624 = 0.5
0.5 x 100 = 50%
Example