-61.29% is the change from 837 to 324
Calculation steps:
[( 324 - 837 ) ÷ 837] x 100 = -61.29%
Formula
Percentage change = [(324 - 837) / 837] x 100
Subtract the new number by the original number
324 - 837 = -513
-513 ÷ 837 = -0.6129032258064516
-0.6129032258064516 x 100 = -61.29%