-64.52% is the change from 651 to 231
Calculation steps:
[( 231 - 651 ) ÷ 651] x 100 = -64.52%
Formula
Percentage change = [(231 - 651) / 651] x 100
Subtract the new number by the original number
231 - 651 = -420
-420 ÷ 651 = -0.6451612903225806
-0.6451612903225806 x 100 = -64.52%