-62.38% is the change from 210 to 79
Calculation steps:
[( 79 - 210 ) ÷ 210] x 100 = -62.38%
Formula
Percentage change = [(79 - 210) / 210] x 100
Subtract the new number by the original number
79 - 210 = -131
-131 ÷ 210 = -0.6238095238095238
-0.6238095238095238 x 100 = -62.38%