-75.95% is the change from 291 to 70
Calculation steps:
[( 70 - 291 ) ÷ 291] x 100 = -75.95%
Formula
Percentage change = [(70 - 291) / 291] x 100
Subtract the new number by the original number
70 - 291 = -221
-221 ÷ 291 = -0.7594501718213058
-0.7594501718213058 x 100 = -75.95%