-70.84% is the change from 758 to 221
Calculation steps:
[( 221 - 758 ) ÷ 758] x 100 = -70.84%
Formula
Percentage change = [(221 - 758) / 758] x 100
Subtract the new number by the original number
221 - 758 = -537
-537 ÷ 758 = -0.7084432717678101
-0.7084432717678101 x 100 = -70.84%