-85.35% is the change from 437 to 64
Calculation steps:
[( 64 - 437 ) ÷ 437] x 100 = -85.35%
Formula
Percentage change = [(64 - 437) / 437] x 100
Subtract the new number by the original number
64 - 437 = -373
-373 ÷ 437 = -0.8535469107551488
-0.8535469107551488 x 100 = -85.35%