-86.35% is the change from 945 to 129
Calculation steps:
[( 129 - 945 ) ÷ 945] x 100 = -86.35%
Formula
Percentage change = [(129 - 945) / 945] x 100
Subtract the new number by the original number
129 - 945 = -816
-816 ÷ 945 = -0.8634920634920635
-0.8634920634920635 x 100 = -86.35%