-96.83% is the change from 945 to 30
Calculation steps:
[( 30 - 945 ) ÷ 945] x 100 = -96.83%
Formula
Percentage change = [(30 - 945) / 945] x 100
Subtract the new number by the original number
30 - 945 = -915
-915 ÷ 945 = -0.9682539682539683
-0.9682539682539683 x 100 = -96.83%