-81.91% is the change from 282 to 51
Calculation steps:
[( 51 - 282 ) ÷ 282] x 100 = -81.91%
Formula
Percentage change = [(51 - 282) / 282] x 100
Subtract the new number by the original number
51 - 282 = -231
-231 ÷ 282 = -0.8191489361702128
-0.8191489361702128 x 100 = -81.91%