-63.43% is the change from 216 to 79
Calculation steps:
[( 79 - 216 ) ÷ 216] x 100 = -63.43%
Formula
Percentage change = [(79 - 216) / 216] x 100
Subtract the new number by the original number
79 - 216 = -137
-137 ÷ 216 = -0.6342592592592593
-0.6342592592592593 x 100 = -63.43%