-20.41% is the change from 784 to 624
Calculation steps:
[( 624 - 784 ) ÷ 784] x 100 = -20.41%
Formula
Percentage change = [(624 - 784) / 784] x 100
Subtract the new number by the original number
624 - 784 = -160
-160 ÷ 784 = -0.20408163265306123
-0.20408163265306123 x 100 = -20.41%