-99.77% is the change from 437 to 1
Calculation steps:
[( 1 - 437 ) ÷ 437] x 100 = -99.77%
Formula
Percentage change = [(1 - 437) / 437] x 100
Subtract the new number by the original number
1 - 437 = -436
-436 ÷ 437 = -0.9977116704805492
-0.9977116704805492 x 100 = -99.77%