-72.91% is the change from 251 to 68
Calculation steps:
[( 68 - 251 ) ÷ 251] x 100 = -72.91%
Formula
Percentage change = [(68 - 251) / 251] x 100
Subtract the new number by the original number
68 - 251 = -183
-183 ÷ 251 = -0.7290836653386454
-0.7290836653386454 x 100 = -72.91%