-78.06% is the change from 784 to 172
Calculation steps:
[( 172 - 784 ) ÷ 784] x 100 = -78.06%
Formula
Percentage change = [(172 - 784) / 784] x 100
Subtract the new number by the original number
172 - 784 = -612
-612 ÷ 784 = -0.7806122448979592
-0.7806122448979592 x 100 = -78.06%