-32.61% is the change from 647 to 436
Calculation steps:
[( 436 - 647 ) ÷ 647] x 100 = -32.61%
Formula
Percentage change = [(436 - 647) / 647] x 100
Subtract the new number by the original number
436 - 647 = -211
-211 ÷ 647 = -0.3261205564142195
-0.3261205564142195 x 100 = -32.61%