-53.02% is the change from 662 to 311
Calculation steps:
[( 311 - 662 ) ÷ 662] x 100 = -53.02%
Formula
Percentage change = [(311 - 662) / 662] x 100
Subtract the new number by the original number
311 - 662 = -351
-351 ÷ 662 = -0.5302114803625377
-0.5302114803625377 x 100 = -53.02%