-49.36% is the change from 624 to 316
Calculation steps:
[( 316 - 624 ) ÷ 624] x 100 = -49.36%
Formula
Percentage change = [(316 - 624) / 624] x 100
Subtract the new number by the original number
316 - 624 = -308
-308 ÷ 624 = -0.4935897435897436
-0.4935897435897436 x 100 = -49.36%