-80.3% is the change from 802 to 158
Calculation steps:
[( 158 - 802 ) ÷ 802] x 100 = -80.3%
Formula
Percentage change = [(158 - 802) / 802] x 100
Subtract the new number by the original number
158 - 802 = -644
-644 ÷ 802 = -0.8029925187032418
-0.8029925187032418 x 100 = -80.3%