-61.76% is the change from 850 to 325
Calculation steps:
[( 325 - 850 ) ÷ 850] x 100 = -61.76%
Formula
Percentage change = [(325 - 850) / 850] x 100
Subtract the new number by the original number
325 - 850 = -525
-525 ÷ 850 = -0.6176470588235294
-0.6176470588235294 x 100 = -61.76%