-81.58% is the change from 787 to 145
Calculation steps:
[( 145 - 787 ) ÷ 787] x 100 = -81.58%
Formula
Percentage change = [(145 - 787) / 787] x 100
Subtract the new number by the original number
145 - 787 = -642
-642 ÷ 787 = -0.8157560355781448
-0.8157560355781448 x 100 = -81.58%