-61.93% is the change from 851 to 324
Calculation steps:
[( 324 - 851 ) ÷ 851] x 100 = -61.93%
Formula
Percentage change = [(324 - 851) / 851] x 100
Subtract the new number by the original number
324 - 851 = -527
-527 ÷ 851 = -0.6192714453584018
-0.6192714453584018 x 100 = -61.93%