-89.42% is the change from 945 to 100
Calculation steps:
[( 100 - 945 ) ÷ 945] x 100 = -89.42%
Formula
Percentage change = [(100 - 945) / 945] x 100
Subtract the new number by the original number
100 - 945 = -845
-845 ÷ 945 = -0.8941798941798942
-0.8941798941798942 x 100 = -89.42%