-73.4% is the change from 297 to 79
Calculation steps:
[( 79 - 297 ) ÷ 297] x 100 = -73.4%
Formula
Percentage change = [(79 - 297) / 297] x 100
Subtract the new number by the original number
79 - 297 = -218
-218 ÷ 297 = -0.734006734006734
-0.734006734006734 x 100 = -73.4%