-21.43% is the change from 910 to 715
Calculation steps:
[( 715 - 910 ) ÷ 910] x 100 = -21.43%
Formula
Percentage change = [(715 - 910) / 910] x 100
Subtract the new number by the original number
715 - 910 = -195
-195 ÷ 910 = -0.21428571428571427
-0.21428571428571427 x 100 = -21.43%