-31.22% is the change from 647 to 445
Calculation steps:
[( 445 - 647 ) ÷ 647] x 100 = -31.22%
Formula
Percentage change = [(445 - 647) / 647] x 100
Subtract the new number by the original number
445 - 647 = -202
-202 ÷ 647 = -0.312210200927357
-0.312210200927357 x 100 = -31.22%