-85.74% is the change from 645 to 92
Calculation steps:
[( 92 - 645 ) ÷ 645] x 100 = -85.74%
Formula
Percentage change = [(92 - 645) / 645] x 100
Subtract the new number by the original number
92 - 645 = -553
-553 ÷ 645 = -0.8573643410852713
-0.8573643410852713 x 100 = -85.74%