-61.45% is the change from 921 to 355
Calculation steps:
[( 355 - 921 ) ÷ 921] x 100 = -61.45%
Formula
Percentage change = [(355 - 921) / 921] x 100
Subtract the new number by the original number
355 - 921 = -566
-566 ÷ 921 = -0.6145494028230185
-0.6145494028230185 x 100 = -61.45%