-82.4% is the change from 807 to 142
Calculation steps:
[( 142 - 807 ) ÷ 807] x 100 = -82.4%
Formula
Percentage change = [(142 - 807) / 807] x 100
Subtract the new number by the original number
142 - 807 = -665
-665 ÷ 807 = -0.8240396530359355
-0.8240396530359355 x 100 = -82.4%