-64.34% is the change from 143 to 51
Calculation steps:
[( 51 - 143 ) ÷ 143] x 100 = -64.34%
Formula
Percentage change = [(51 - 143) / 143] x 100
Subtract the new number by the original number
51 - 143 = -92
-92 ÷ 143 = -0.6433566433566433
-0.6433566433566433 x 100 = -64.34%