-67.49% is the change from 243 to 79
Calculation steps:
[( 79 - 243 ) ÷ 243] x 100 = -67.49%
Formula
Percentage change = [(79 - 243) / 243] x 100
Subtract the new number by the original number
79 - 243 = -164
-164 ÷ 243 = -0.6748971193415638
-0.6748971193415638 x 100 = -67.49%