-75.08% is the change from 313 to 78
Calculation steps:
[( 78 - 313 ) ÷ 313] x 100 = -75.08%
Formula
Percentage change = [(78 - 313) / 313] x 100
Subtract the new number by the original number
78 - 313 = -235
-235 ÷ 313 = -0.7507987220447284
-0.7507987220447284 x 100 = -75.08%