-32.46% is the change from 647 to 437
Calculation steps:
[( 437 - 647 ) ÷ 647] x 100 = -32.46%
Formula
Percentage change = [(437 - 647) / 647] x 100
Subtract the new number by the original number
437 - 647 = -210
-210 ÷ 647 = -0.32457496136012365
-0.32457496136012365 x 100 = -32.46%