-75.63% is the change from 907 to 221
Calculation steps:
[( 221 - 907 ) ÷ 907] x 100 = -75.63%
Formula
Percentage change = [(221 - 907) / 907] x 100
Subtract the new number by the original number
221 - 907 = -686
-686 ÷ 907 = -0.7563395810363837
-0.7563395810363837 x 100 = -75.63%