-77.9% is the change from 706 to 156
Calculation steps:
[( 156 - 706 ) ÷ 706] x 100 = -77.9%
Formula
Percentage change = [(156 - 706) / 706] x 100
Subtract the new number by the original number
156 - 706 = -550
-550 ÷ 706 = -0.7790368271954674
-0.7790368271954674 x 100 = -77.9%