-69.77% is the change from 43 to 13
Calculation steps:
[( 13 - 43 ) ÷ 43] x 100 = -69.77%
Formula
Percentage change = [(13 - 43) / 43] x 100
Subtract the new number by the original number
13 - 43 = -30
-30 ÷ 43 = -0.6976744186046512
-0.6976744186046512 x 100 = -69.77%