-95.77% is the change from 307 to 13
Calculation steps:
[( 13 - 307 ) ÷ 307] x 100 = -95.77%
Formula
Percentage change = [(13 - 307) / 307] x 100
Subtract the new number by the original number
13 - 307 = -294
-294 ÷ 307 = -0.9576547231270358
-0.9576547231270358 x 100 = -95.77%