-61.24% is the change from 836 to 324
Calculation steps:
[( 324 - 836 ) ÷ 836] x 100 = -61.24%
Formula
Percentage change = [(324 - 836) / 836] x 100
Subtract the new number by the original number
324 - 836 = -512
-512 ÷ 836 = -0.6124401913875598
-0.6124401913875598 x 100 = -61.24%