-32.17% is the change from 945 to 641
Calculation steps:
[( 641 - 945 ) ÷ 945] x 100 = -32.17%
Formula
Percentage change = [(641 - 945) / 945] x 100
Subtract the new number by the original number
641 - 945 = -304
-304 ÷ 945 = -0.3216931216931217
-0.3216931216931217 x 100 = -32.17%