-32.87% is the change from 645 to 433
Calculation steps:
[( 433 - 645 ) ÷ 645] x 100 = -32.87%
Formula
Percentage change = [(433 - 645) / 645] x 100
Subtract the new number by the original number
433 - 645 = -212
-212 ÷ 645 = -0.32868217054263565
-0.32868217054263565 x 100 = -32.87%