-63.57% is the change from 140 to 51
Calculation steps:
[( 51 - 140 ) ÷ 140] x 100 = -63.57%
Formula
Percentage change = [(51 - 140) / 140] x 100
Subtract the new number by the original number
51 - 140 = -89
-89 ÷ 140 = -0.6357142857142857
-0.6357142857142857 x 100 = -63.57%