-77.23% is the change from 224 to 51
Calculation steps:
[( 51 - 224 ) ÷ 224] x 100 = -77.23%
Formula
Percentage change = [(51 - 224) / 224] x 100
Subtract the new number by the original number
51 - 224 = -173
-173 ÷ 224 = -0.7723214285714286
-0.7723214285714286 x 100 = -77.23%