-79.8% is the change from 782 to 158
Calculation steps:
[( 158 - 782 ) ÷ 782] x 100 = -79.8%
Formula
Percentage change = [(158 - 782) / 782] x 100
Subtract the new number by the original number
158 - 782 = -624
-624 ÷ 782 = -0.7979539641943734
-0.7979539641943734 x 100 = -79.8%