-60.97% is the change from 620 to 242
Calculation steps:
[( 242 - 620 ) ÷ 620] x 100 = -60.97%
Formula
Percentage change = [(242 - 620) / 620] x 100
Subtract the new number by the original number
242 - 620 = -378
-378 ÷ 620 = -0.6096774193548387
-0.6096774193548387 x 100 = -60.97%