-69.28% is the change from 690 to 212
Calculation steps:
[( 212 - 690 ) ÷ 690] x 100 = -69.28%
Formula
Percentage change = [(212 - 690) / 690] x 100
Subtract the new number by the original number
212 - 690 = -478
-478 ÷ 690 = -0.6927536231884058
-0.6927536231884058 x 100 = -69.28%