-82.27% is the change from 818 to 145
Calculation steps:
[( 145 - 818 ) ÷ 818] x 100 = -82.27%
Formula
Percentage change = [(145 - 818) / 818] x 100
Subtract the new number by the original number
145 - 818 = -673
-673 ÷ 818 = -0.8227383863080685
-0.8227383863080685 x 100 = -82.27%