-52.87% is the change from 662 to 312
Calculation steps:
[( 312 - 662 ) ÷ 662] x 100 = -52.87%
Formula
Percentage change = [(312 - 662) / 662] x 100
Subtract the new number by the original number
312 - 662 = -350
-350 ÷ 662 = -0.5287009063444109
-0.5287009063444109 x 100 = -52.87%